Full list of all 44 Afterfall InSanity Extended Edition achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
"Tranquilize" 20 opponents with Syringe
Smash 50 heads with a kick to the head in the finisher
Defeat Third Boss
Finish sixth encounter
Finish fifth encounter
Defeat Second Boss
Finish fourth encounter
Finish third encounter
Defeat first boss
Finish second encounter
Finish first encounter
Kill 50 opponents with Sickle
Kill 50 opponents with 'Pacyfikator' Telescopic Baton
Sprint for 4000 meters (in total)
Kill 100 using headshots
Beat the game on InSane difficulty setting
Beat the game on Hard difficulty setting
Beat the game on Normal difficulty setting
Beat the game on Easy difficulty setting
Complete Level 10
Kill 30 opponents with Raging Bull
Complete Level 9
Complete Level 8
Listen to all recordings in the game
Complete Level 7
Find most of notes in the game
Kill 30 using the finishers
Complete Level 6
Kill 100 with dismemberment
Complete Level 5
Kill 50 opponents with Firefighter's Axe
Complete Level 4
Hack a device with L2 Security with less than 5 mistakes
Kill 30 opponents with Power Hammer
Complete Level 3
Complete Level 2
Complete Level 1
Find an ammo pack in the vending machine