MasterEmu
MasterEmu is a free Android emulator for Sega Master System and Sega Game Gear.
What MasterEmu is
MasterEmu is a free Android emulator for Sega Master System and Sega Game Gear. Its file browser loads .sms and .gg ROM files from internal or external storage, including ZIP files. You can save and load emulation states, import and export them, and use automatic SRAM saving for supported ROMs. Cheat code support covers Pro Action Replay and Game Genie. Physical controllers work in menus and during gameplay, and their buttons can be remapped. Display settings include automatic rotation, a lockable orientation, and widescreen or optional 4:3 horizontal display. The listing states support for Android 4.4 through Android 13 and Android TV. The maker describes the project as open source and links its source repository on GitHub. The app has no ads or in-app purchases. Users must obtain ROMs legally; the maker does not provide sources for them. The maker also says he is a lone programmer and is not affiliated with Sega.
Good
- Loads .sms and .gg ROMs, including ZIP files
- Supports Pro Action Replay and Game Genie codes
- Supports physical controllers with button remapping
- Offers save states and automatic SRAM handling
- No ads or in-app purchases
Watch out
- Android only
- Users must obtain ROMs legally themselves
Who it suits
MasterEmu suits Android users who want to play Sega Master System or Game Gear ROMs with controller, save-state, and display options. Users need to obtain their ROMs legally.
Verdict
MasterEmu combines support for two Sega systems with controller, cheat-code, and save options. Its use depends on having legally obtained ROMs.
Plans and prices
From MasterEmu's own pricing page, checked 2 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| MasterEmu | Free | Android app · no ads or in-app purchases |
The facts
Each one read from MasterEmu's own pages, with the date it was checked.
Where it runs
- Android support
- The listing states support for Android 4.4 through Android 13 and Android TV.checked 2 Oct 2026
What it does
- Cheat codes
- The app supports Pro Action Replay and Game Genie cheat codes.checked 2 Oct 2026
- Controllers
- It supports physical controllers in menus and during gameplay, with button remapping.checked 2 Oct 2026
- Display options
- It offers auto-rotation, lockable screen orientation, and widescreen or optional 4:3 horizontal display.checked 2 Oct 2026
- Game files
- Its file browser can load .sms and .gg ROM files from internal or external storage, including ZIP files.checked 2 Oct 2026
- Open source
- The maker describes the project as open source and links its source repository on GitHub.checked 2 Oct 2026
- Purpose
- MasterEmu is an Android emulator for Sega Master System and Sega Game Gear.checked 2 Oct 2026
- ROM requirement
- The maker says users must obtain ROMs legally and does not provide sources for obtaining them.checked 2 Oct 2026
- Save support
- The app supports saving and loading emulation states, state import and export, and automatic SRAM save handling for supported ROMs.checked 2 Oct 2026
- Support
- The app listing gives [email protected] as the support email.checked 2 Oct 2026
The company
- Maker
- The maker describes himself as a lone programmer and says he is not affiliated with Sega.checked 2 Oct 2026
- Maker background
- Phil Potter says MasterEmu is among his programming projects and that he is a fan of retro games and Linux/Free Software.checked 2 Oct 2026
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