The player is open source
EmuHall's player loads these engines into its own process, so it is published in full under the MIT licence, which is compatible with the GPL. Read it, build it and test it on GitHub.
Credits and licences.
EmuHall exists because of the people who spent years building these emulators and libraries. Here is every one of them, with its licence and its source.
Engines
Each runs inside EmuHall's player under its own licence. Any change EmuHall makes is published with the engine's source.
| Engine | Plays | Licence |
|---|---|---|
| mGBA | Game Boy, Game Boy Color, Game Boy Advance | MPL-2.0 |
| Gambatte | Game Boy, Game Boy Color | GPL-2.0-or-later |
| FCEUmm | NES | GPL-2.0-or-later |
| Snes9x | Super Nintendo | Snes9x licence (non-commercial) |
| Mupen64Plus-Next | Nintendo 64 | GPL-2.0 |
| melonDS DS | Nintendo DS | GPL-3.0-or-later |
| Citra | Nintendo 3DS | GPL-2.0-or-later |
| PCSX ReARMed | PlayStation | GPL-2.0-or-later |
| EmuHall PS2 | PlayStation 2 · built on PCEE2 and PCSX2 | GPL-3.0-or-later |
| Genesis Plus GX | Mega Drive / Genesis, Master System, Game Gear | Genesis Plus GX licence (non-commercial) |
Libraries and assets
| Project | Used for | Licence |
|---|---|---|
| PCSX2 | The PlayStation 2 emulator EmuHall PS2 is derived from | GPL-3.0-or-later |
| rcheevos | The official RetroAchievements client | MIT |
| SDL3 | Controllers and portable windows | Zlib |
| Libretro API | The engine interface the player implements | MIT |
| Vulkan-Headers | Vulkan rendering in the player | Apache-2.0 OR MIT |
| DirectX Shader Compiler | Direct3D 12 shaders for EmuHall PS2 | NCSA and MIT |
| Saira Extra Condensed | Display typeface | SIL OFL 1.1 |
Engine source, always
Every download includes each engine's licence text. The complete corresponding source of every engine EmuHall ships, including any changes EmuHall makes, is published beside each release.
Non-commercial engines
Snes9x and Genesis Plus GX may only be distributed free of charge. That is one of the reasons EmuHall is, and will stay, free.
Trademarks
The EmuHall name and logo are trademarks of Braza IO and are not covered by the MIT licence. Console and company names belong to their respective owners and are used only to describe compatibility. EmuHall is not affiliated with or endorsed by Nintendo, Sony, Sega or any engine's authors.