ePSXe - ePSXe (enhanced PSX emulator) is an emulator of the PlayStation video game console for x86-based PC...
jGameBase - jGameBase is a fully-featured retro-gaming emulator frontend and game database utility.
RetroArch - RetroArch is a frontend for emulators, game engines and media players.
Stella - Stella is a multi-platform Atari 2600 VCS emulator released under the GNU General Public License...
FPse - PSX emulator on Windows Mobile or Windows Phone Device and Android.
Javatari - Javatari is a multiplayer Atari 2600 emulator written in pure Java with no external libs.