Settings
Controls
One layout for every system. Face buttons follow the RetroPad: A is the right button, B the bottom one.
System files
Some systems need firmware from the original hardware. Files stay on this device and are only given to that system's emulator.
MSX
MSX.ROMMSX1 BIOS — the open-source C-BIOS worksMSX2.ROMMSX2 BIOS (optional)MSX2EXT.ROMMSX2 extended BIOS (optional)DISK.ROMDisk drive ROM for .dsk images (optional)
3DO
panafz1.bin3DO BIOS (Panasonic FZ-1) — needed to boot any disc
PlayStation
scph5501.binUS BIOS — optional, improves compatibility (optional)
Game Boy Advance
gba_bios.binOptional — mGBA ships an HLE BIOS (optional)
Storage
Your games, saves and covers live in this browser's storage, not on a server.
Games…
Save states…
Space usedUnknown
Not yet protected. The browser may clear stored data when the device runs low on space.
Emulators and licences
Each system's emulator downloads the first time you play it, then works offline.
| System | Emulator | Licence | Status |
|---|---|---|---|
| MSX | fmsx | fMSX licence (non-commercial) | Needs hosting |
| Nintendo Entertainment System | fceumm | GPL-2.0 | Ready |
| Master System | genesis_plus_gx | Genesis Plus GX licence (non-commercial) | Ready |
| PC Engine | mednafen_pce_fast | GPL-2.0 | Ready |
| Mega Drive | genesis_plus_gx | Genesis Plus GX licence (non-commercial) | Ready |
| Game Boy | gambatte | GPL-2.0 | Ready |
| Game Gear | genesis_plus_gx | Genesis Plus GX licence (non-commercial) | Ready |
| Super Nintendo | snes9x | Snes9x licence (non-commercial) | Ready |
| 3DO | opera | See upstream licence (research use; confirm terms before commercial use) | Experimental |
| PlayStation | pcsx_rearmed | GPL-2.0 | Ready |
| Nintendo 64 | mupen64plus_next | GPL-2.0 | Needs hosting |
| Game Boy Color | gambatte | GPL-2.0 | Ready |
| Game Boy Advance | mgba | MPL-2.0 | Ready |
EmuRM runs unmodified libretro cores through Nostalgist.js (MIT) and RetroArch (GPL-3.0). Several cores carry non-commercial licences; if you deploy EmuRM, keep it free of charge or swap those cores out.
Your games, your rights
EmuRM doesn't provide commercial games. Play games you own, homebrew, or titles released for free use. Nothing you add is uploaded.