Here is the full list of all 39 Entropy : Zero 2 achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Wipe the slate.
Stop your predecessor.
Decide against pulling the trigger.
And there it is.
Capture Judith Mossman.
Consume 10,000 kg with Xen grenades.
Drive to Arbeit 2.
Kill 25 alien creatures with the crossbow.
Kill 18 rebels using the 357.
Enter the domain of the Project on your way to Arbeit 2.
Escape the chamber catacomb beneath Arbeit 1.
Kill the gigantic man-eating monster.
Meet Wilson.
Meet the Miscreant Agent.
Lead the invasion of Arbeit Communications.
Fight to the extraction point in Nova Prospekt.
Relive the past.
Find the 19 audio recordings at Arbeit 1.
Complete the game on Normal difficulty or higher.
Complete the game on Hard difficulty.
Bring Wilson to the upload station at the end of the game.
He's in the system.
Kill the Advisor.
Kill both of the gonomes in the Xentarium.
Flip your APC.
Witness the secret temporal overlay in the monitoring station.
Neutralize Dr. Mossman's helicopter on the Arbeit 3 helipad.
Find and kill all 4 instances of the Temporal Crab.
Reach the extraction point with four soldiers.
Reach the secret lab within Arbeit 1 with five soldiers.
Kick open 60 doors.
Kick the Advisor.
Kill a long-jump rebel whilst they are in mid-air.
Reunite with Scar Zero at Entropic Control.
Find and open all of the Wilson closets.
Get health from a surrendered medic.
Earn bronze medals on all challenge maps.
Earn silver medals on all challenge maps.
Earn gold medals on all challenge maps.