A native LÖVE2D recreation of Poke Red, Blue, Yellow, Gold, Silver, Crystal, FireRed, LeafGreen, Ruby, Sapphire, and Emerald. The engine and map behavior are hand-written Lua; game data and graphics are decoded from a ROM supplied by the player.

And before you say, "that's not a recomp", you're wrong. Recomp is an acronym. Reverse Engineering Causes Obsessive Mental Problems

Click Here for the AI Use Disclosure!

[!CAUTION] We are NOT affiliated with the website gen1recomp[.]com That website is not run by this project, was not authorized by us, and we have no idea who operates it. It is impersonating this project; do not download anything from it, and treat anything it hosts or claims as untrustworthy. Even if the site currently links back to this repository, the people behind it can change its content at any time, so nothing on it should ever be trusted. This GitHub repository, the Discord, and https://gen1re.com are the only official sources for this project. Also, as I assumed would eventually happen, the idiot that made that website now pumped it full of adware. Please stay away from that website.

MODS ALL FOUND ON THE DISCORD

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What this is

G1R Deluxe aka Gen1Recomp is a native LÖVE2D recreation of Pokemon Red, Blue, Yellow, Gold, Silver, Crystal, FireRed, LeafGreen, Ruby, Sapphire, and Emerald. The engine and map behavior are hand-written Lua, ported from the pret disassemblies & C. Game data, graphics, and audio programs are decoded on first launch from a ROM you supply.

The project does not include a ROM, emulate the Game Boy, transpile assembly, or download a disassembly. Your ROM is verified, used during import, and released from memory. It is never copied into the cache, and later launches load the private generated cache without asking for it again. Music, sound effects, and cries are synthesized while the game runs. All eleven games can be imported side by side. Gen 2 support is still under construction.

Quick Start

Download the build for your platform from the latest release.
Launch it. The packaged app contains no ROM and no game data, so the launcher will ask for one.
Choose your legally obtained .gb / .gbc / .gba file, a .zip / .7z that holds one (offered only where your platform's build supports archives), or drop it onto the window. Import takes a few seconds and the game starts automatically.
Repeat for any other game you own. Each one gets its own tab in the launcher.

Only the canonical US English ROMs below are accepted. The importer checks the SHA-1 before creating any game data. FireRed, LeafGreen, Ruby, Sapphire, and Emerald support is in beta.

Game	Revision	ROM size	SHA-1
Red	-	1 MiB	`ea9bcae617fdf159b045185467ae58b2e4a48b9a`
Blue	-	1 MiB	`d7037c83e1ae5b39bde3c30787637ba1d4c48ce2`
Yellow	-	1 MiB	`cc7d03262ebfaf2f06772c1a480c7d9d5f4a38e1`
Gold	-	2 MiB	`d8b8a3600a465308c9953dfa04f0081c05bdcb94`
Silver	-	2 MiB	`49b163f7e57702bc939d642a18f591de55d92dae`
Crystal	1.0	2 MiB	`f4cd194bdee0d04ca4eac29e09b8e4e9d818c133`
Crystal	1.1	2 MiB	`f2f52230b536214ef7c9924f483392993e226cfb`
FireRed	1.0	16 MiB	`41cb23d8dccc8ebd7c649cd8fbb58eeace6e2fdc`
FireRed	1.1	16 MiB	`dd5945db9b930750cb39d00c84da8571feebf417`
LeafGreen	1.0	16 MiB	`574fa542ffebb14be69902d1d36f1ec0a4afd71e`
LeafGreen	1.1	16 MiB	`7862c67bdecbe21d1d69ce082ce34327e1c6ed5e`
Emerald	1.0	16 MiB	`f3ae088181bf583e55daf962a92bb46f4f1d07b7`
Ruby	1.0	16 MiB	`f28b6ffc97847e94a6c21a63cacf633ee5c8df1e`
Ruby	1.1	16 MiB	`610b96a9c9a7d03d2bafb655e7560ccff1a6d894`
Ruby	1.2	16 MiB	`5b64eacf892920518db4ec664e62a086dd5f5bc8`
Sapphire	1.0	16 MiB	`3ccbbd45f8553c36463f13b938e833f652b793e4`
Sapphire	1.1	16 MiB	`4722efb8cd45772ca32555b98fd3b9719f8e60a9`
Sapphire	1.2	16 MiB	`89b45fb172e6b55d51fc0e61989775187f6fe63c`

Platform notes: Linux, iOS, Xbox Dev Mode, handhelds, Nintendo Switch, and PlayStation 4 each have their own install steps.

Windows Defender: it sometimes flags the Windows build with a generic detection such as Trojan:Win32/Wacatac!ml (#621). This is a known false positive: the exe is the official LÖVE runtime with the game archive appended, and Defender distrusts unsigned executables with appended data. Every release publishes sha256sums.txt so you can verify your download, and you can check a flagged file on VirusTotal.

Controls

Action	Keyboard	Controller
Move	Arrow keys / WASD	D-pad / left stick
A	Z / Enter / Space	A
B	X / Backspace	B
Start	Escape	Start
Select	Tab / Shift	Back / Select

Rebind any of these in-game under OPTIONS > CONTROLS.

Key	What it does
`-` / `=`	Zoom out / in (overworld; also mouse wheel)
`1` / `0`	GAME SPEED up / down (controller: R2 faster, L2 slower)
`2`	Cycle COLORS
`3`	Cycle TILT (free-roam overworld)
`4`	Cycle ZOOM through every level (free-roam overworld)
`F1`	Save
`F2`	Load
`F10`	Open / close the mod manager

COLORS, TILT, ZOOM, SHADER FX, GAME SPEED, and VOID FILL are also in the Options menu and persist in options.lua.

Low-end devices: OPTIONS > PERFORMANCE scales the optional extras for weaker hardware (HIGH, BALANCED, LOW, or AUTO, the default). It only changes presentation; game logic is identical on every tier. Details in docs/new-features.md.

Documentation

Everything else lives in the docs folder or on the project wiki, which has the modding book, link play, save editor, and developer setup guides:

Rulesets: faithful Gen 1 quirks or modern cleanups
Online play: lobby, battles, tournaments, trading
Launch options: one-click shortcuts and URLs
Portable mode: run from a USB drive
Running from source
Modding: mod platform, example mods, Tiled map editing
Architecture

Bugs

Found a bug? A warp dropping you somewhere it shouldn't, a battle doing math that looks wrong, text in the wrong box, anything that does not match the original game. Open a bug report. Attach a screenshot if you can. It saves a lot of back and forth, and if you can't get one, the form asks you to describe what you saw instead.

License

See LICENSE.MD.

Special Thanks

This project would not be possible without pret > the pret band of decompiling maniacs > and their pokered disassembly.

Read official guide