Nebula is a Windows based CPS2, CPS1, and Neo Geo arcade game emulator.
NEBULA is an emulator for the hardware found in the CAPCOM CPS2 boards. The games that use this hardware include Super Street Fighter, Street Fighter (Alpha, Zero, Alpha 2, etc), games with Marvel characters and Dungeons & Dragons series.
News source: Nebula website
Download: Nebula v2.14a