EmuNations

WineD3D For Windows is a DirectX 1-11 to OpenGL wrapper with almost full implementation of DirectX used in Wine. Even if Windows supports DirectX natively, using WineD3D can enhance backwards compatibility with older games..

WinArcadia is a multi-system emulator of Signetics-based machines released during the 1970's and 1980's. It supports load/save snapshots, CPU tracing, trainer, graphics scaling, automatic loading of per-game configurations, netplay and much more...

SuperModel emulates Sega's Model 3 arcade platform which uses OpenGL and SDL library to those arcade games. It's still considered to be in "alpha" stage of development with game compatibility remaining average, but it's still being actively developed...