Rate top games16.67%
Consummate Professionals
Complete a campaign with a rating of Excellent or better
16.67%
Total Protonic Reversal
Complete a campaign featuring incorporeal entities
16.67%
Master Of Unlocking
Unlock all campaign modes
16.67%
Lieutenant Ripley's Believe It Or Not
Complete a campaign on Extreme difficulty
16.67%
Scourge Of The Galaxy
Kill 10 Type D enemies
16.67%
Game Over, Man! Game Over!
Complete a campaign featuring portals and fast-moving aliens
16.67%
R'lyeh Wgah'nagl Fhtagn!
Complete a campaign featuring madmen or horrors
16.67%
Terminate, With Extreme Prejudice
Complete a campaign featuring enhanced soldiers with firearms
16.67%
Intergalactic Critter Slayer
Kill 200 Type A enemies
16.67%
It's Better This Way
Kill a zombified Deadnaut
16.67%
Competent Threat Hunter
Kill 100 Type B enemies
16.67%
A Delicate Touch
Complete a campaign without destroying a room