A native Android port of Star Trek: Voyager — Elite Force Holomatch (the multiplayer game, 2000), inspired by and building on VoyagerNX, faithvoid's Nintendo Switch port — VoyagerNX proved the ARM + console-controls path this project started from. The engine base is lilium-voyager with the Vulkan renderer from Quake3e. Online play and offline matches against bots, touch controls, full gamepad support.

No game data is included. You need your own copy of the retail game (GOG release, original CD + patches, or an existing PC install).

Features

Vulkan renderer (Quake3e renderervk, adapted to the Elite Force engine) — see VULKAN_RENDERER.md. This is the only renderer; the old OpenGL ES path has been removed.
Render thread (r_smp, on by default): runs the back-end (Vulkan command recording, submit and present) on a dedicated thread, overlapping it with the next frame's simulation. Set r_smp 0 to run single-threaded. See RENDER_THREAD_PLAN.md.
JIT recompilers for the game QVMs on both ABIs: vm_armv7l (32-bit, SUSE-derived) and vm_aarch64 (64-bit, Quake3e-derived) — native-speed cgame/qagame/ui everywhere, no interpreter fallback. See AARCH64_JIT_NOTES.md.
Touch controls: virtual stick, look area, and an LCARS-styled button overlay that auto-hides while a gamepad is in use.
Gamepad: SDL GameController mapping, dual-analog defaults, rebindable in the Controls menu, proper analog movement scaling.
Widescreen: the 2D menu can fill any aspect (cl_flexibleDisplay), or keep the original 4:3; r_mode -2 renders at native resolution.
In-app game-data import: if the game data is missing at launch, the app lets you pick your pak*.pk3 files with the system file picker and copies them into place. No storage permission needed at any target SDK.
Single-column video menu rebuilt for phone screens, first-boot player-name prompt, soft-keyboard support.

Requirements

Android 7.0+ (API 24) with Vulkan support — the APK declares Vulkan as a required feature.
An ARM device. The APK is universal (armeabi-v7a + arm64-v8a); 64-bit devices use the arm64 build with its own QVM JIT, and devices that dropped 32-bit support entirely are supported.
Retail Elite Force data: pak0.pk3 (541 MB) plus the official patch paks pak1.pk3–pak3.pk3 from BaseEF/ of a PC installation.

Install

Copy your four pak*.pk3 files onto the phone (anywhere — Downloads is fine).
Install the APK and launch it.
When asked, pick the four pak files. They are copied into the game's data directory and the game starts. That's the whole setup; next launches go straight into the game.

For development there's ./deploy-to-phone.sh, which installs the APK, pushes the paks over adb (point EF_PAKS at them) and launches with logcat attached. The manual push target is /sdcard/Android/obb/com.voyager.ef/baseEF/ (lowercase baseEF).

Build

Everything needed to build is in this repository (engine, SDL2, zlib, libjpeg, the prebuilt SPIR-V, and the port's bundled assets). No game data is required to build — only to run.

Prerequisites:

Android SDK with platform android-35 and build-tools 35
NDK 25.1.8937393
CMake 3.31.5
JDK 21

Point Gradle at your SDK, either with an env var or a local.properties file:

export ANDROID_HOME=/path/to/Android/sdk        # or:
echo "sdk.dir=/path/to/Android/sdk" > EFAndroid/local.properties

Then build:

cd EFAndroid
./gradlew :app:assembleDebug    # output: app/build/outputs/apk/debug/app-debug.apk

The first run downloads Gradle 8.9 / AGP 8.7.2. The APK is universal (armeabi-v7a + arm64-v8a).

Engine sources compiled into the APK live in EFAndroid/app/jni/efcode/ (lilium-voyager plus the Android/Vulkan port layer; GPLv2, see COPYING.txt). The renderer is Vulkan-only (renderervk).
./build-native.sh [abi] is a fast compile check of libmain.so without packaging.

ui.qvm

The repo does not bundle a ui.qvm: the UI module is derived from Raven's Elite Force GDK UI sources, so the engine instead loads the retail ui.qvm from your own pak2.pk3 at runtime. The game is fully playable that way.

Optionally, a custom ui.qvm with the Android additions (single-column video menu, first-boot name prompt, bind capture) can be built from the GDK Code-DM tree with Raven's lcc/q3asm toolchain (build-ui-qvm.sh) and dropped into EFAndroid/app/src/main/assets/baseEF/vm/. String-table compatibility with the retail data is documented in UI_STRING_ALIGNMENT.md.

Port-specific runtime assets (the LCARS touch overlay art, Android default config) ship inside zpak-android.pk3 so they survive the engine's pure-filesystem checks; loose files under baseEF/ are only reliable before a map loads.

Known issues / roadmap

The main menu can only be navigated by touch, or by d-pad up/down on a controller — other controller inputs (sticks, face buttons) don't move the menu selection yet.
If you see corrupted graphics (banding/garbage across the screen), try turning MSAA off (Video options, or r_ext_multisample 0 followed by vid_restart) and please report your device + GPU driver version.
The on-screen touch controls are functional but rough; the layout and feel need a revamp.
Ogg/Opus/MP3 decoding and curl downloads are not compiled in yet. This doesn't affect the retail game (all stock audio is WAV) — only community content that ships compressed audio, and in-game http downloads. The library sources are already in the tree; they just need to be wired into the Android build.

Multiplayer

IPv4 networking is enabled (INTERNET is the only permission). The original Raven master server is gone; lilium's community master (efmaster.tjps.eu) is configured as a fallback.

License & credits

Engine and port code are GPLv2 (COPYING.txt). Star Trek and related marks belong to Paramount/CBS; this is a non-commercial fan port and includes no game assets. Full attribution in CREDITS.md.

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