Check out these incredible Starcraft 2 mods!

METAL SLUG (Download)

http://www.youtube.com/watch?v=oAvZlonNTDg

ORIGINS (Released in 8 days)

http://www.youtube.com/watch?v=TWXtq8mkYg8

ZOMBIE DEFENSE (Release: TBA)

http://www.youtube.com/watch?v=Ah4HVmBpFvk

ASTEROIDS (Download)

http://www.youtube.com/watch?v=qz84U36WVBY

CHESS (Download)

http://www.youtube.com/watch?v=ly2vw6wyeHw

REAPER (Release: TBA)

http://www.youtube.com/watch?v=5sEORA5QDQc

FINAL FANTASY (Release: TBA)

http://www.youtube.com/watch?v=Vjuf7DELz9s

Also check out this video as well

THIRD PERSON SHOOTER (Pre-Alpha Stage)

http://www.youtube.com/watch?v=wQSpelnU31s

STEAK RACER (Download)

http://www.youtube.com/watch?v=tEMWi7NbEcs