I saw this deal on SD. It retails for $20, so I figure $5 is a pretty good deal on it. No idea how good the game is on Steam, but I figure I'd post it here in case some of you don't check SD.
GetGamesGo.com has Mortal Kombat Komplete Edition (PC Digital Download) for $4.99. Thanks Discombobulated
Note, game activates via Steam
Deal Editor's Note: Receives an 81 out of 100 metascore & 88 out of 100 user score at Metacritic. -slickdewmaster