Dega
Dega is a free emulator for Sega Master System, Mark III, and Game Gear games.
What Dega is
Dega is a free emulator for Sega Master System, Mark III, and Game Gear games. It runs on Windows and *NIX; its README specifically names Windows 95, NT, 98, 2000, ME, and XP. Use is permitted only for non-commercial purposes, and the project repository currently has no releases. Dega supports Python scripting for user input, resets, movie playback and recording, and access to a game's RAM. Python can run as a module in another program or in embedded mode within the emulator. The included memory.py tool provides a Python-based memory viewer and trainer. Movie recording can be resumed later from a saved state. Windows includes save-state slots, and the emulator also uses a gzip-compressed .dgz save-state format. It can load ROMs from ZIP files, enable Yamaha 2413 FM sound on machines equipped with that chip, and combine some games' flickering-glasses effect into a red-and-blue image for compatible glasses. Technical information estimates compatibility at 97%.
Good
- Supports three Sega systems
- Python scripting includes access to game RAM
- Can resume movie recording from a saved state
- Loads ROMs from ZIP files
Watch out
- Non-commercial use only
- Repository currently has no releases
- README lists older Windows versions
Who it suits
Dega may suit people seeking a Sega Master System, Mark III, or Game Gear emulator on Windows or *NIX. Its Python scripting and memory tools may appeal to users who want to work with game input or RAM.
Verdict
Dega offers emulator features alongside scripting, memory access, movie recording, and save states. Its non-commercial restriction and lack of repository releases are important considerations before choosing it.
Plans and prices
From Dega's own pricing page, checked 30 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Dega | Free | free for non-commercial use only |
The facts
Each one read from Dega's own pages, with the date it was checked.
What it does
- 3D display
- Dega can merge the flickering glasses effect from some games into a red/blue image for red/blue glasses.checked 30 Sep 2026
- Commercial restriction
- The software may be used freely as long as it is not used commercially.checked 30 Sep 2026
- Compatibility
- The technical information estimates 97% compatibility.checked 30 Sep 2026
- FM audio
- Dega can enable the Yamaha 2413 FM sound chip for machines equipped with it.checked 30 Sep 2026
- Memory tools
- The distribution includes memory.py, a memory viewer and trainer fully implemented in Python.checked 30 Sep 2026
- Movie recording
- Dega allows users to record a movie and resume recording it later from a saved state.checked 30 Sep 2026
- Operating systems
- The README says Dega runs under Windows 95, NT, 98, 2000, ME or XP and *NIX.checked 30 Sep 2026
- Python modes
- Python support works in standalone mode as a module in a Python program or embedded mode inside the emulator.checked 30 Sep 2026
- Python scripting
- Dega supports Python scripting of user input, resets, movie playback and recording, and access to the running game's RAM.checked 30 Sep 2026
- Release availability
- The GitHub repository currently has no releases.checked 30 Sep 2026
- ROM loading
- Dega supports loading ROMs from ZIP files.checked 30 Sep 2026
- Save states
- Dega provides save-state slots on Windows and supports a native gzip-compressed .dgz save-state format.checked 30 Sep 2026
- Video encoding
- Dega supports AVI encoding from a movie file on *NIX systems.checked 30 Sep 2026
- What it does
- Dega is an emulator for Sega Master System, Mark III and Game Gear games.checked 30 Sep 2026
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