| Achievement | How to unlock
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| A Delicate Touch | Complete a campaign without destroying a room.
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| Back In One Piece | Complete a mission without losing a Deadnaut.
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| Competent Threat Hunter | Kill 100 Type B enemies.
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| Consummate Professionals | Complete a campaign with a rating of Excellent or better.
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| Death By Sentinel | Kill 15 enemies using hacked Sentinels.
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| Do Not Disturb | Complete a mission without destroying a room.
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| Game Over, Man! Game Over! | Complete a campaign featuring portals and fast-moving aliens.
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| Ghost Ship | Encounter the ghost of a deceased Deadnaut.
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| Grizzled Destroyer Of Aliens | Kill 50 Type C enemies.
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| Intergalactic Critter Slayer | Kill 200 Type A enemies.
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| It's Better This Way | Kill a zombified Deadnaut.
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| Oh, You're Alive. That's Nice... | Rescue a captured Deadnaut.
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| R'lyeh Wgah'nagl Fhtagn! | Complete a campaign featuring madmen or horrors.
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| Scourge Of The Galaxy | Kill 10 Type D enemies.
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| Send In The Clones | Complete the last mission of a campaign with a crew of cloned Deadnauts.
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| Shoot It In The Head! | Complete a campaign featuring undead mutants.
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| Sole Survivor | Start and complete a mission with a single Deadnaut.
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| Terminate, With Extreme Prejudice | Complete a campaign featuring enhanced soldiers with firearms.
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| The Untouchables | Complete a campaign without losing a Deadnaut.
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| Total Protonic Reversal | Complete a campaign featuring incorporeal entities.
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| Where'd You Go? | Teleport a Deadnaut to another room by entering a portal.
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