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