Free Tetrix - Free Tetrix is an inviting clone of famous Tetris game (1678 hits)
Final Odyssey - another Starcraft clone (1449 hits)
Super Mario 3: Mario Forever - Super Mario 3 is a remake of the original Nintendo classic. There are literally hundreds of Super Mario remakes out there but this one is a bit better than many of the others I've seen. Acid-Play also rates this as one of the best Super Mario clones available for the PC (1381 hits)
TetrixMania - TetrixMania is an inviting clone of famous Tetris game with huge amount of improvements and with a lot of fun features. (1258 hits)
Fuse - The Free Unix Spectrum Emulator (Fuse) is an emulator of the 1980s home computer and various clones. It emulates the Spectrum 16K, 48K, 128K, +2, +2A, +3, +3e, and SE, the Timex TC2048 and TC2068, the Pentagon, and the Scorpion. Almost all the common Spectrum emulator file formats are supported, including .rzx input recordings, .tzx tape images, and .szx and .z80 snapshots. (1120 hits)
Coolumns Classic - It is a new fine clone of the best seller Collapse game (902 hits)
Project Xenoclone - official website (670 hits)
Grid wars - Geometry Wars Clone - It seems a clone of Geometry Wars Retro Evolved has surfaced for the PC. Everything is mimicked here from the crazy grid to the shapes of the enemies. The graphics aren't nearly has nice as the XBox 360's, but you still get the basic premise of what GW is all about. (626 hits)
Echoes - Geometry Wars clone (518 hits)