OpenCrown PC

<h1 align="center">OpenCrown PC</h1> <p align="center"><i>Dragon's Crown Pro Multiplayer Port, running natively on Windows, Linux and Steam Deck</i></p> <p align="center"> <img src="docs/img/launcher-online.jpg" alt="The OpenCrown PC launcher, on its Online page" width="100%"> </p> <p align="center"> <a href="https://github.com/Nezara/OpenCrown-PC/releases/latest"><img alt="Latest release" src="https://img.shields.io/github/v/release/Nezara/OpenCrown-PC?label=release&color=c08a2a"></a> <img alt="Platform" src="https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20Steam%20Deck%20%7C%20Android%20%28beta%29-3a5a8a"> <img alt="Requires your own copy" src="https://img.shields.io/badge/requires-your%20own%20PS4%2FPS5%20dump-8a3a4a"> <img alt="Online" src="https://img.shields.io/badge/online-peer--to--peer-3a8a5a"> <a href="https://discord.gg/srBT23NYRA"><img alt="Discord" src="https://img.shields.io/badge/Discord-join%20the%20server-5865F2?logo=discord&logoColor=white"></a> </p> <p align="center"> <b><a href="#getting-started">Getting started</a></b> · <a href="#linux--steam-deck">Linux / Steam Deck</a> · <a href="#android-beta">Android</a> · <a href="#the-launcher">Launcher</a> · <a href="#controls">Controls</a> · <a href="#playing-online">Online</a> · <a href="#how-it-works">How it works</a> · <a href="#building-from-source">Building</a> · <a href="#faq">FAQ</a> </p>

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OpenCrown PC lets you play Dragon's Crown Pro on a Windows PC, on Linux or on a Steam Deck from a dump of your own PS4/PS5 copy. It is a native launcher, not an emulator: the game's own code runs directly on your CPU, while OpenCrown provides the PS4 system libraries, the renderer, input, saves and online play.

This is a hobby project made by one person with AI assistance (details below). It isn't affiliated with or endorsed by Vanillaware, Atlus or Sony.

[!IMPORTANT] No game files are included, and none will ever be. You need your own dump of Dragon's Crown Pro (CUSA10454). See Your dump.

Support the people who made it

Dragon's Crown Pro is a beautiful game made by a small studio. If you enjoy it here, please make sure they get paid for it.

• 🛒 Buy Dragon's Crown Pro on the PlayStation Store.
• 🦄 Play Unicorn Overlord, Vanillaware's tactical RPG, on the PlayStation Store.
• ⚔️ Support Vanillaware's latest game, Muramasa: Revenant Blades on Steam. It's the best way to tell them there's a PC audience for their games.

Made with AI assistance 🤖

[!IMPORTANT] OpenCrown PC was built with help from AI. Much of the code and the reverse-engineering behind it was written by Claude, Anthropic's AI model. Nezara led the project: set the direction, decided what went in, and tested, hunted bugs and diagnosed problems on every build. The full source is public, so you can see exactly what's here.

Features

• 🖥️ Runs natively on Windows and Linux. No PS4 emulator; the game's code runs as a regular Windows or Linux program.
• 🕹️ Steam Deck ready. One AppImage file, playable from Game Mode: the launcher works with the controller and touch screen, the right trackpad steers the fairy pointer and tapping the screen sends the fairy to that spot.
• 🎨 Rewritten renderer on SDL GPU (Direct3D 12 or Vulkan on Windows, Vulkan on Linux) with an OpenGL 3.3 fallback, at 1080p or 4K (the PS4 Pro mode).
• 🎮 Gamepads (Xbox, DualShock / DualSense and others through SDL3), up to 4 local players, with rumble.
• ⌨️ Keyboard and mouse with mouse attacks and the fairy pointer on the mouse, all rebindable.
• 🔄 Dynamic button prompts. On-screen prompts switch between PlayStation buttons and your keyboard / mouse keys, following whichever you used last, and show your own bindings.
• 💾 PS4/PS5-compatible saves. Save files are byte-identical to the console's, so you can bring your PS4/PS5 progress over and take it back.
• 🌐 Online co-op for up to 4 players, using the game's own netcode over direct peer-to-peer connections, with room codes, friend codes and room text chat.
• 🎥 Separate cameras online (new in 1.0.8). In online adventures each player's screen follows their own character, and fights hold the party together until the enemies are beaten. Works on Windows, Linux and Android. (details)
• 🌍 Fan translations and mods. Modified game archives (for example a fan translation) are accepted.
• 🇯🇵 Japanese button layout option: Circle confirms and Cross cancels in menus.
• ⏭️ Optional story and tutorial skip on new characters (details below).
• 🪟 Launcher for your dump, saves, controls, display, online settings and bug reports.
• 🔄 Built-in updates. The launcher tells you when a new version is out, shows what changed and installs it with one click.

Screenshots

<table> <tr> <td width="50%"><img src="docs/img/stage1-fight.jpg" alt="Fighting in the Ancient Temple"></td> <td width="50%"><img src="docs/img/launcher-game.jpg" alt="The launcher's Game page"></td> </tr> <tr> <td align="center">_{Stage 1, the Ancient Temple}</td> <td align="center">_{The launcher, ready to play}</td> </tr> </table>

_{All screenshots are from OpenCrown running a personal dump. The game art belongs to Vanillaware / Atlus.}

Requirements

OS	Windows 10 or 11, 64-bit, or 64-bit Linux with glibc 2.35+ (Steam Deck / SteamOS 3.5+, Ubuntu 22.04+, Debian 12+, Fedora, Arch, ...)
Android (beta)	Android 9+, 64-bit ARM CPU, Vulkan 1.1, and your own decrypted PS Vita dump (PCSE00019) with the 1.09 update. See Android.
GPU	Direct3D 12 or Vulkan for the default renderer; anything with OpenGL 3.3 (most GPUs from the last ~12 years) as the fallback
CPU	A modern x86-64 CPU (the game's code runs on it directly)
Game	Your own dump of Dragon's Crown Pro (CUSA10454)
Online	An Internet connection. UPnP on your router helps but isn't required.

Your dump

OpenCrown needs the game's files from a console you own. Which console depends on the version you play:

PC (Windows) and Linux / Steam Deck: Dragon's Crown Pro (CUSA10454) from a PS4 or PS5 you own: the decrypted eboot.bin together with the rest of the game folder (the files the game reads at run time and the sce_sys folder).

OpenCrown Mobile (Android): Dragon's Crown (PCSE00019) from a PS Vita you own, as two folders:

• The base game: the decrypted eboot.bin together with the rest of the game folder (the sce_module and sce_sys folders and the files the game reads at run time).
• The 1.09 update: laid out the same way, with its own decrypted eboot.bin. Other update versions aren't supported.

The launcher checks both folders and tells you if anything is missing.

[!WARNING] Encrypted packages won't work. A PKG from the PS4/PS5, the PS Vita or the PlayStation Store is encrypted. OpenCrown can't decrypt it, and it never will. It also won't help you get the game any other way. Dump the copy you own with the usual homebrew tools for your console.

Your dump is only ever read. OpenCrown never writes to it or modifies it; the small patches described below (34 bytes in total) are applied in memory each time you play.

Getting started

All downloads are on opencrown.net and on the Releases page.

Windows

1. Download the latest OpenCrownPC-*-win64.zip from opencrown.net or Releases.
2. Unzip it anywhere, for example C:\Games\OpenCrownPC. Keep the three files together: OpenCrownPC Launcher.exe, dcp_run.exe and SDL3.dll.
3. Run OpenCrownPC Launcher.exe. Windows SmartScreen may warn you because the program isn't code-signed (it's a hobby project). Click More info → Run anyway.
4. On the Game page, browse to your dump folder (the one containing eboot.bin). The launcher checks the folder and tells you if anything is missing.
5. The first time, it asks where to keep your saves. The default is Documents\Dragons Crown Pro\saves.
6. Press Play. 🎉

Your settings, saves and logs all live in Documents\Dragons Crown Pro\ unless you choose a different save folder.

Linux / Steam Deck

Everything is in one file: OpenCrown-<version>-x86_64.AppImage from Releases. Nothing to install, no root needed.

Desktop Linux

1. Download the AppImage and put it wherever you like, for example ~/Games/OpenCrown/.
2. Make it executable: right-click it → Properties → Permissions → Allow executing file as program, or in a terminal:

   chmod +x OpenCrown-*-x86_64.AppImage
   

3. Run it (double-click, or ./OpenCrown-*-x86_64.AppImage).
4. On the Game page, browse to your dump folder, choose where your saves go the first time, and press Play. 🎉

Steam Deck

1. Hold the power button → Switch to Desktop.
2. Copy the AppImage and your dump folder to the Deck (internal storage or the SD card both work), for example with a USB stick or over the network.
3. In the file manager (Dolphin), right-click the AppImage → Properties → Permissions → tick Is executable.
4. Open Steam → Games → Add a Non-Steam Game to My Library… → Browse… → pick the AppImage → Add Selected Programs.
5. Switch back to Game Mode (the Return to Gaming Mode icon on the desktop) and start OpenCrown from your library.
6. The launcher works with the controller: D-pad / stick to move, A to select, B to go back, L1 / R1 to switch pages, Start to play. On the Game page use Browse to find your dump; folders with a complete dump are marked [dump] (the SD card has its own button). Press Steam + X if you need the on-screen keyboard.
7. In the game, tap the touch screen to send the fairy pointer there and interact (doors, chests); drag to move it. On a Steam Deck the controller is the main input: mouse clicks never attack. With Steam Input on, add Touchscreen Native Support to the shortcut's controller layout (Action Sets → Add Always-On command → System) so the game gets real touches.

On Linux, settings, saves and logs live in ~/.local/share/OpenCrown/. Updating through the launcher replaces the AppImage in place, so your Steam shortcut keeps working (the file name keeps its old version number; that's expected).

Android (beta)

OpenCrown Mobile runs the game's PS Vita version on Android. It's lighter to run (960×544, a quarter of the pixels of 1080p), cheaper to translate on phone CPUs (32-bit ARM to 64-bit ARM instead of x86-64) and the game already supports touch. It plays online together with OpenCrown PC, and saves move between the two with no conversion.

What you need

• An Android 9 or newer phone, tablet or handheld with a 64-bit ARM CPU and Vulkan 1.1. A controller is recommended; on-screen controls appear while none is connected.
• Your own decrypted PS Vita dump: the base game and the 1.09 update. See Your dump.

Install

1. Download OpenCrownMobile-*-arm64.apk from Releases on the device (or copy it over from your PC).
2. Open the APK and tap Install. The first time, Android asks you to allow installing apps from your browser or file manager: allow it, go back and install. The app isn't from the Play Store, so Play Protect may warn you; choose Install anyway.
3. Start OpenCrown Mobile once. When it asks for All files access, allow it (it needs it to read the game files you copy in). It creates the folder Internal storage/OpenCrown/ with dump/Game/ and dump/Update/ inside.
4. Copy your dump to the device. Connect it to your PC with a USB cable and choose File transfer on the device, then on the PC open the device's Internal storage/OpenCrown/dump/:
   • copy the contents of the base game folder into dump/Game/, and
   • copy the contents of the 1.09 update folder into dump/Update/.
5. Back in the launcher, press Check again on the Game page. Both lines should start with [ok] (base game 01.00 and update 1.09 found); if not, the line says what's missing.
6. Press Play. 🎉

Saves. On the Save Folder page, Import PC save brings in a save from OpenCrown on PC (Documents\Dragons Crown Pro\saves\SAVEDATA00\SAVE0.DAT; your current save is backed up first), and Export save sends your Mobile save wherever you pick (Downloads, a USB stick, Google Drive, ...) to put into that same folder on the PC. No conversion is needed either way.

Playing. A controller works like on a Vita, and its buttons can be changed on the Controls page. Without a controller, use the on-screen controls; touching the screen moves the fairy pointer.

On-screen controls (new in 0.1.6). On the Controls page you can set their opacity and size, and choose a floating stick that centres where your thumb lands. Edit touch layout lets you drag and resize each group of buttons (you can also open the editor in game by holding Select + Start on the touch controls for 2 seconds). Reset touch layout puts everything back. In town, tapping the screen opens the Town Map: that's how the Vita version works. Online play (the Online page) uses the same lobby as OpenCrown PC and starts at the stables in town.

Saves, settings and log.txt live in Internal storage/OpenCrown/.

The launcher

The launcher is a small window with a sidebar. Once your dump is set, it uses the game's own artwork from your dump, so the exe itself contains no game art.

Page	What it does
Game	Choose and check your dump folder, then press Play. The game starts in its own window; the launcher writes everything it prints to logs\last_run.log.
Controls	Rebind every keyboard and mouse action and adjust the fairy pointer speed (saved to input.ini, which you can also edit by hand; delete it to restore the defaults). Also the Japanese button layout option: Circle confirms, Cross cancels in menus.
Display	Windowed or borderless fullscreen, window size, 4K rendering (PS4 Pro mode), and the game language (English, French, Spanish, German, Italian, from the game's own files).
Online	Your online name, your friend code, adding friends by code, incoming and outgoing friend requests, UPnP, room text chat, Separate cameras when I host, a connection test and the lobby server address.
Save Folder	Where your saves live. Point it at a folder with a SAVEDATA00 from your PS4/PS5 to keep playing your console progress.
Report a Bug	Sends a short note, your OS name and version, and the end of your last log, so problems can be fixed. You can preview exactly what is sent first. See Privacy.
Update	At the bottom left. Shows whether a new version is out and what it fixes; Download and install updates OpenCrown in place (the download is checked against its SHA-256 first). The automatic check at start can be switched off there.

Launcher settings are stored in launcher.ini next to your saves and logs.

Controls

Gamepads work out of the box with the PS4 layout. Keyboard and mouse defaults are below; everything can be changed on the Controls page.

Action	Default		Action	Default
Move	W A S D		Attack (□)	Left mouse
Jump (✕)	Space		Special (○)	Right mouse
Item / interact (△)	E		Evade / L1 · R1	Left Shift
L2 / R2	Z / C		L3 / R3	Left Ctrl / V
D-pad	Arrow keys		Pause (Options)	Esc
Character menu (touchpad)	Tab		Town map	M
Look / right stick	I J K L		Fairy pointer	Hold middle mouse

The fairy pointer: hold the middle mouse button and move the mouse to steer Rannie's fairy to treasure, doors and runes. Press E to tap while pointing. Mouse attacks are paused while you hold it. If you'd rather not hold a button, you can set an on/off key.

Mouse cursor: the Windows / Linux cursor is hidden over the game window while you play (the fairy is your pointer), and comes back for text boxes such as name entry and chat.

Button prompts follow you: the game's on-screen prompts ("Press ✕", "Press TOUCHPAD to open Town Map" and so on) show PlayStation buttons while you use a gamepad. As soon as you touch the keyboard or mouse they switch to key caps and mouse icons labelled with your current bindings, and they switch back when you pick the pad up again. The key and mouse icons are OpenCrown's own drawings; the renderer swaps them in for the game's button sprites.

Steam Deck and touch screens: with Steam Input on (the normal case when you start it from Steam), the sticks and buttons work like a PS4 pad, the right trackpad moves the fairy pointer and clicking it interacts. With Steam Input off, the right trackpad is the fairy pointer and a left trackpad click opens the town map. Tapping the touch screen sends the fairy straight to that spot, and a short tap also interacts. Both can be switched off on the Controls page.

Handy extra: F1 shows performance stats in the window title.

Saves

Saves use the PS4's own format, byte for byte, so the same files work on your console, on PS4 emulators and here. Windows and Linux use the same files too. To continue a console playthrough, copy your SAVEDATA00 folder into your OpenCrown save folder (or point the Save Folder page at it). Copy it back the same way.

Keep a backup of your saves before moving them between devices. It's free insurance.

What is changed in the game

Very little. The PS4 system libraries the game calls (kernel, file system, audio, controller, saves, fonts, networking) are translated to Windows or Linux equivalents, and the PS4 renderer is rewritten to draw the game's frames on your GPU. Everything else is the game's own native code, running unchanged.

The game's code is patched in a few places. The patches are applied in memory each time you play and never written to your dump:

• Story skip (2 bytes). The game has its own "start from the second half" skip, but it normally only offers it once a class has cleared the game. One 2-byte change offers it to every new character.
• Skip reminder (26 bytes in four places). If you say no to the story skip, the game asks once more with a reminder that online play unlocks partway through the story, then respects your answer. Four small jumps send the game to a few lines of OpenCrown's own code that show the reminder.
• Tutorial question (6 bytes). Instead of starting the tutorial automatically, the game asks "Begin the tutorial?" on a save's first character.
• Separate cameras (online adventures only, see below).

Each patch checks that the original bytes are exactly what it expects first; if they aren't, it leaves that spot alone.

How it works

<p align="center"> <img src="docs/img/how-it-runs.svg" alt="Diagram: your dump goes into the loader, which runs the game's own code; the game talks to translated PS4 libraries and a rewritten PC renderer" width="100%"> </p>

The PS4 and a PC share the same kind of processor (x86-64), so the game's machine code doesn't need to be emulated or recompiled. OpenCrown's loader reads your decrypted eboot.bin, maps it into memory the way the PS4 would, links the game's calls to the system libraries to OpenCrown's own implementations, and then jumps into the game's entry point.

From there the game runs exactly as it was written. Whenever it asks the "PS4" for something (open a file, play a sound, read the controller, save the game, draw a frame), the request goes to OpenCrown's code, which does the same job with Windows or Linux, SDL3 and OpenGL. The renderer is the biggest piece: the game hands over PS4 GPU command lists, and OpenCrown turns them into OpenGL draws, decoding the PS4's tiled textures and shaders along the way.

The dcp_run.exe next to the launcher is the program that actually runs the game; the launcher sets things up and starts it for you.

Playing online

<p align="center"> <img src="docs/img/online.svg" alt="Diagram: both players briefly talk to the lobby server to find each other, then connect directly peer to peer" width="100%"> </p>

Online play uses the game's own matchmaking and netcode. The lobby server only introduces players to each other:

1. Host or join a room. When you go online in the game, it opens a room on the lobby server. Others can find it in the room list, or join with a room code or from your friends list.
2. Handshake. The server swaps the players' network addresses so they can reach each other.
3. Peer to peer. The players connect directly over UDP. All gameplay traffic goes between the players, never through the server. NAT traversal uses STUN and hole punching, plus UPnP if your router allows it.

Bones (the ally records you find in the catacombs and resurrect at the temple) are swapped by the game itself over that same peer connection when a stage starts, just like on PS4/PS5. There's no central bones database.

The lobby is a small open-source Cloudflare Worker that lives in server/lobby-worker. Anyone can run their own and point the Online page at it.

Friends: each player has a friend code like ABCD-1234. Add someone by their code on the Online page. Once they accept, you can see when they're online and use Join Friend's Room in the game.

[!NOTE] Online play unlocks at the same point in the story as on PS4/PS5. Taking the story skip on a new character gets you there right away.

Separate cameras

New in 1.0.8 (Windows, Linux) and Mobile 0.1.6. On PS4/PS5 everyone in an online room shares one camera. With OpenCrown, each player's screen follows their own character in online adventures, so you can explore a little apart.

• Fights keep the party together. When anyone starts a fight, nobody can move on past it until its enemies are defeated. Walking back is always allowed.
• The host decides. The setting is Separate cameras when I host on the Online page (Mobile: the Online page too). It's on by default in this version; we'd like to hear how it plays, and it may not stay the default.
• Everyone needs the new version. If anyone in the room is on an older version, the whole room uses the shared camera as before.
• Town and local (couch) play are unchanged.

Privacy

• The lobby server sees: your online name, a random account ID, your public IP and port (needed to connect players), your rooms and your friends list. It doesn't see or relay gameplay.
• Other players see: your online name and your IP address, the same as in any peer-to-peer game.
• Bug reports contain your short note, your operating system's name and version (for example Windows 11 24H2, SteamOS 3.6 or Android 14; nothing that identifies your device) and the last part of last_run.log. Before sending, your Windows user name, PC name, home folder path and account secret are scrubbed out, and you can preview the whole report first. Reports are rate limited and only kept to fix bugs.
• Update check: when the launcher starts it asks GitHub for the list of releases (GitHub sees your IP, nothing else is sent). You can switch this off on the Update page.
• Nothing else is sent anywhere unless you go online or send a bug report.

Known issues

This is an early release from a hobby project, so expect a few rough edges:

• Two players behind the same router may not be able to connect to each other yet. Different houses work fine.
• Very strict networks (some mobile or carrier-grade NAT connections) can stop the direct connection. There's no relay server yet.
• Friend status can take about 10 seconds to update.
• Windows user names with non-English characters (e.g. C:\Users\Jürgen) can break file paths. Choosing a save folder with a plain path works around it.
• Odd or unusual text can appear briefly on scene transitions. The PS4's system text library isn't included, so some of the text it would supply has to be swapped for generic stand-in text. Most of these cases have been caught and fixed, but a few outliers may still slip through. If you spot one, a bug report saying where it happened helps.
• The programs aren't code-signed, so SmartScreen and some antivirus tools may be suspicious at first.
• Linux / Steam Deck is brand new. It has been tested on Ubuntu 22.04, but not yet on a real Steam Deck or on other desktops and distros. Feedback through Report a Bug or Discord is very welcome.
• Running the Windows version through Proton isn't supported. On Linux and the Steam Deck, use the AppImage.
• Separate cameras are new. If something looks wrong in an online adventure (a player stuck at a fight edge, an enemy that doesn't wake), the host can switch Separate cameras when I host off, and a bug report helps.

Found something else? Use the launcher's Report a Bug page or open an issue.

Building from source

You'll need:

• CMake 3.24+ and Ninja
• MinGW-w64 GCC (UCRT build, e.g. WinLibs) with C++20 support

SDL3, Dear ImGui, FreeType and the other dependencies are downloaded by CMake on the first configure.

cmake -S port -B port/build -G Ninja
cmake --build port/build

That gives you OpenCrownPC Launcher.exe, dcp_run.exe and SDL3.dll in port/build, plus a few developer tools (dcp_cpk, dcp_tex, dcp_audio, dcp_viewer, ...) and the tests (test_*.exe). The tests run without any game files.

Linux: the Linux build lives in linux-port/ (Ubuntu 22.04 or newer: install the packages listed in linux-port/README.md, then run ./build.sh; sh packaging/make-appimage.sh makes the AppImage).

Android (beta): OpenCrown Mobile's source isn't public. The APK is on the Releases page.

The lobby server builds and tests separately with Node.js; see server/lobby-worker/README.md.

[!NOTE] Some information is restricted. Parts of this project's earlier research and code were copied by others without proper credit, so from 1.0.8 on, new features are published without detailed notes or explanations of how they work.

FAQ

<details> <summary><b>Is this an emulator?</b></summary>

No. An emulator pretends to be the whole console. OpenCrown runs the game's own code directly and only replaces the PS4 parts it talks to (system libraries and graphics). That's why it can be small and fast, but it also means it only runs Dragon's Crown Pro.

</details> <details> <summary><b>Is this a decomp or a recomp?</b></summary>

Neither. No game source code is reconstructed, and nothing from the game is rebuilt or included here. On Windows and Linux the game's original code from your own dump runs as it is; OpenCrown supplies the system around it. On Android the Vita version's code is translated for your phone's CPU while it runs.

</details> <details> <summary><b>Is this online?</b></summary>

Yes. Online co-op for up to 4 players works on every platform, with friend codes, room codes, the room list and room text chat. It's free, needs no PlayStation Network account, and the players connect directly to each other once the OpenCrown lobby has introduced them. See Playing online.

</details> <details> <summary><b>Is this the same as the "Dragon's Crown Pro Port"?</b></summary>

No. OpenCrown is not affiliated with that project. It has copied content from this project without permission, and its creator has declined to collaborate.

</details> <details> <summary><b>Can I download the game somewhere and use it?</b></summary>

No. Please buy the game and dump your own copy. This project won't link to, host or help with pirated copies, and it can't decrypt PKG files.

</details> <details> <summary><b>Can I play online with people on a real PS4/PS5?</b></summary>

No. OpenCrown players play with each other through the OpenCrown lobby. PlayStation Network isn't involved.

</details> <details> <summary><b>Will my PS4/PS5 save work?</b></summary>

Yes. Copy your SAVEDATA00 folder into the save folder. The format is identical, and it works the other way round too.

</details> <details> <summary><b>Does it run on the Steam Deck?</b></summary>

Yes, with the Linux AppImage (see Linux / Steam Deck). Add it to Steam as a non-Steam game and it runs from Game Mode, launcher included, with the controller and touch screen. Please use the AppImage rather than the Windows version through Proton.

</details> <details> <summary><b>How do separate cameras work, and can I turn them off?</b></summary>

In online adventures, each player's screen follows their own character instead of one shared camera, and a fight holds everyone until its enemies are beaten. The host's Separate cameras when I host setting (Online page) decides for the room; switch it off to play with one shared camera like on PS4/PS5. See Separate cameras.

</details> <details> <summary><b>My friend and I are on different versions. Can we still play together?</b></summary>

Yes. The room simply falls back to the shared camera while anyone is on an older version. Updating everyone through the launcher gives you the newest features.

</details> <details> <summary><b>Does the Android (Vita) version play online with others?</b></summary>

Yes. OpenCrown Mobile has the same online co-op as the PC version: up to 4 players, friends, rooms and chat. Go online at the stables in town. When an Android player hosts, they should be inside a dungeon before the others search for the room.

</details> <details> <summary><b>Does the Android (Vita) version connect to PC and Steam Deck players?</b></summary>

Yes. OpenCrown Mobile, OpenCrown PC on Windows and the Linux / Steam Deck version all use the same lobby, so players on any of them can be in one room, with either side hosting. Saves move between Mobile and PC without conversion too.

</details> <details> <summary><b>Can I play with someone on a real PS Vita?</b></summary>

No. Like on PC, OpenCrown Mobile only plays with other OpenCrown players. PlayStation Network isn't involved.

</details> <details> <summary><b>Can I use a fan translation or other mod?</b></summary>

Yes. Modified game archives are accepted; the Game page shows them as modified. Mods aren't supported or tested by OpenCrown, so keep a copy of your original files.

</details> <details> <summary><b>Why aren't there detailed notes for the new features?</b></summary>

Earlier research and code from this project were reused by others without proper credit. To protect the work, new features are published without detailed notes or explanations of how they work.

</details> <details> <summary><b>Where do I get the latest version?</b></summary>

From opencrown.net or the Releases page. Once installed, the launcher tells you when a new version is out and updates itself.

</details> <details> <summary><b>Are there cheats or trainers?</b></summary>

No, and there won't be. The goal is to play the game as it was made.

</details> <details> <summary><b>Why is SmartScreen / my antivirus warning me?</b></summary>

The programs aren't code-signed (signing certificates cost money), and a program that loads another program's code into memory looks unusual to antivirus heuristics. The full source is right here if you'd like to check it or build it yourself.

</details>

Credits

• Vanillaware and Atlus for making Dragon's Crown, a game that's still gorgeous years later.
• Nezara, project lead, bug hunting, diagnosing and a lot of testing, again and again and again.
• Claude (Anthropic), coding and reverse-engineering contributor.
• The shadPS4 project, used as a reference to compare against during early stages of development.
• SDL, Dear ImGui, FreeType, MiniUPnPc and Mbed TLS, which make this possible.

Legal

Dragon's Crown and Dragon's Crown Pro are trademarks of their respective owners. OpenCrown PC is an independent, non-commercial fan project. The repository contains no code, art, audio or other data from the game (apart from the screenshots above, shown to illustrate the project), and it requires a legally obtained copy that you dumped yourself. It is not affiliated with or endorsed by Vanillaware, Atlus, SEGA or Sony Interactive Entertainment.

Help keep the server running

OpenCrown is free and always will be. Donations will go toward upgrading the server and any ongoing server maintenance. Any overflow will go towards building more resources for the community; there are no perks, rewards or early builds, and everyone gets the same thing whether they donate or not.

<p align="center"> <a href="https://ko-fi.com/nezara"><img alt="Support the server on Ko-fi" src="https://img.shields.io/badge/Ko--fi-support%20the%20server-ff5e5b?logo=ko-fi&logoColor=white"></a> </p>