Gens is a Sega Mega Drive, MegaCD and 32X emulator.
It is a feature rich emulator which is very stable, and has good compatibility. More than 90% of games work flawlessly with Gens.
The software emulates Genesis, Sega CD (iso/mp3, not real CD) and 32X roms.
The emulator sports an attractive GTK+2 integrated interface.
There are various forks of Gens available. One of the notable ones is Gens/GS, maintained by GerbilSoft. The main goal of Gens/GS is to clean up the source code and combine features from various forks of Gens.
Features include:
- OpenGL support.
- Joypad support.
- Support for Game Genie cheats.
- Support for Netplay using the Kaillera client.
- Support for Sega CD and Sega 32X games if provided with the respective BIOS images, which are not included with the emulator.
- Saving console state (without relying on in-game save ability).
- Recording what buttons are pressed and slowing the gameplay down so it is used in making of tool-assisted speedruns.
- SRAM support.
- BRAM support.
- Numerous sound/video enhancements:
- Vertical Synchronization to disable tearing on fast-moving games such as Sonic the Hedgehog.
- Supports 2xSaI (Kreed) graphics filtering to make older games appear crisper than on the original console.
- Multiple sound bitrates (11025, 22050 and 44100), stereophonic sound capability, YM2612 high sound quality, and WAV and GYM sound dumps.
- Screen save capability and brightness/contrast adjust.
Website: github.com/rofl0r/gens
Support:
Developer: Stephane Dallongeville, Stephane Akhoun (Linux port)
License: GNU General Public License

Gens is written in C. Learn C with our recommended free books and free tutorials.
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