As we all know, almost every video game console's emulator on computer is free to use. Whereas due to copyright issues, the emulator's developer can not provide us with those corresponding BIOS files that play a vital role in the game emulation.

FB Alpha (short for FinalBurn Alpha, FBA for short) is a very popular multiple-console emulator for MC68000/Zilog Z80 based arcade games. It has less system memory and lower computer configuration requirements than MAME, and runs faster with better graphics - comes with all features of MAME Plus!. One word, its position in video gamers' mind is now only after the king of arcade emulator MAME.

PPSSPP (short for PlayStation Portable Simulator Suitable for Playing Portably) is a cross-platform and open-source emulator originally created by Henrik Rydgård (AKA: hrydgard, one of the main members in the development team of the renowned NGC/Wii emulator - Dolphin) from Sweden, in 2012. It can perfectly run the vast majority of PSP games, supports Windows, Linux, Mac OX, Android, iOS and many other mainstream computer and mobile device operating system.

Project64k (short for PJ64K) is an unofficial, modified edition of the best Nintendo 64 emulator Project64 with multiplayer online gameplay (NetPlay) support - using the Kaillera network.

For any video game PC emulator player, if you already knew the best PSOne emulator is ePSXe, then you also must know the best one for PlayStation 2. Right, that is PCSX2, an open source and free PS2 emulator for Windows, Mac and Linux.