Here is the full list of all 40 Redeemer: Enhanced Edition achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Complete the game on hardcore mode
Mince some meat in Chapter 11
Complete every chapter with 0 deaths.
Shoot 500 enemies.
Complete the game
Perform 100 stealth kills.
Beat all Arena levels.
Kill 3 enemies while Vasily is near death
Shut down the engines in Chapter 15
Kill 150 enemies using the environment
End the rivalry once and for all
Destroy more than 50% of the walls in Chapter 14
This is a zero-waste production facility. Chapter 13
Forward, Forward, High Punch. Chapter 12
Execute 300 enemies.
Perform 300 parries.
Be careful with the glass in Chapter 10
Defeat the guardians.
Be quicker than the big guys in Chapter 9
Break 100 weapons
Restore 1000% of health
Shoot 50 enemies
Clean out the greenhouse in Chapter 8
Kill 75 enemies using the environment
Perform 40 stealth kills.
Kill five enemies simultaneously
Kill three enemies simultaneously
Let the others do your work in Chapter 7
Add a bit of pacifism to this bloodbath. Chapter 6
Win the duel against an old firend.
Restore health from near death to full
Cook some kebabs in Chapter 5
Kill two enemies simultaneously
Turn the ruins into a crypt in Chapter 4
Execute 30 enemies.
Who's there? Chapter 3
Do it the oldschool way in Chapter 2
Kill 25 enemies using the environment
Parry 50 times
Feed the fish in Chapter 1