Lemuroid

The people behind Lemuroid

What Lemuroid supports

• Android phones and tablets (APK builds)
• Android TV / Fire TV devices (Android TV compatible UI and controls)
• Libretro cores including: mgba, gambatte, snes9x, fceumm, mupen64plus, PCSX-ReARMed, PPSSPP, desmume/MelonDS, fbneo, genesis_plus_gx, beetle_pce_fast, mednafen_ngp, beetle_cygne (WonderSwan) and others
• Gamepad and touch input, custom touch overlays
• Zipped ROM support, automatic ROM scanning and indexing
• Save states, cloud save sync (where supported by build)

Download and availability

Lemuroid setup guide

1. 1) Choose build and install: Go to the project's GitHub Releases and pick the APK that matches your device (Free/F-Droid-style releases or Play Store build where available). If you install an APK from GitHub, enable Install unknown apps for your package installer and sideload the APK. Prefer the GitHub release matching your Android version and architecture. The Play Store variant may handle dynamic feature downloads differently; GitHub releases provide full APKs or split APKs as posted by the maintainer.
2. 2) Allow permissions and run initial scan: On first run grant storage/media access so Lemuroid can scan for ROMs, covers and metadata. Lemuroid will automatically scan configured folders for supported ROM types (it supports zipped ROMs). If a directory is ignored during the scan, point the app explicitly at that directory from the file picker so it rescans it.
3. 3) ROMs folder layout and filenames: Place ROM files into a ROMs directory accessible by the app. The FAQ and wiki document example internal paths: /sdcard/Android/data/com.swordfish.lemuroid/files/roms/<system_name> or other folders you choose. Lemuroid officially recommends using non-merged ROM sets whose CRC32 matches Libretro DB for best metadata matching, but standard single-file ROMs and zipped archives are supported.
4. 4) Cores (how they’re provided and updated): Lemuroid uses Libretro cores. On Play Store builds some cores are delivered as dynamic feature modules; on GitHub/F-Droid builds cores are downloaded on demand from the project’s releases or bundled in the lemuroid-cores component. If a core for a system is missing, the app will prompt or provide a menu to download the core; alternatively, manually place cores as directed by the repository’s docs (see Wiki/cores pages).
5. 5) BIOS and extra files: Some systems and cores require BIOS or firmware files to run certain titles; these are not included with Lemuroid. If a core requires a BIOS, consult the core’s Libretro documentation for the exact filename and checksum and place the file in the path expected by that core. Lemuroid’s FAQ and issues pages discuss common BIOS-related troubleshooting.
6. 6) Controller and Android TV setup: Lemuroid supports external gamepads and Android TV navigation. Configure controller mapping within the app and test button mappings in-game. For Android TV/Fire TV, use the Android TV build or confirm the APK includes the TV-specific resources; community posts show users running Lemuroid on Nvidia Shield and Fire TV devices with some device-specific tweaks.
7. 7) Saving, cloud sync and states: The app supports auto-save/restore and quick save/load (save states). Save files and states are stored under the app’s data directory (for example android/data/com.swordfish.lemuroid/files/saves). If you use cloud sync features, enable them in settings; behavior and availability may vary by build and Google Play/FOSS distribution.
8. 8) Troubleshooting & updates: If a core misbehaves check: (1) you have the correct core version (update from Releases), (2) any required BIOS is present and correctly named, (3) ROM compatibility (try a different core for the same system), and (4) search the project Issues and Discussions for device-specific fixes (some devices require input fixes or older core variants). Use the GitHub Releases page to obtain newer builds or community forks if needed.

Sources and further reading

• Lemuroid GitHub repository (README, supported systems, license, files)
• Lemuroid GitHub Releases (official downloads/APKs)
• Lemuroid Wiki — Frequently-Asked-Questions (ROM paths, core/ROM guidance)
• Project blog / release posts by the author (historical release announcements)
• Lemuroid supported systems overview (project site)
• Featured-image source and credit