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.
Perform 100 stealth kills.
Complete every chapter with 0 deaths.
Shoot 500 enemies.
Perform 300 parries.
Complete the game on hardcore mode
Complete the game
Execute 300 enemies.
Break 100 weapons
Shut down the engines in Chapter 15
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
Kill 150 enemies using the environment
Mince some meat in Chapter 11
Be careful with the glass in Chapter 10
Defeat the guardians.
Be quicker than the big guys in Chapter 9
Kill 3 enemies while Vasily is near death
Beat all Arena levels.
Restore 1000% of health
Clean out the greenhouse in Chapter 8
Restore health from near death to full
Perform 40 stealth kills.
Shoot 50 enemies
Let the others do your work in Chapter 7
Add a bit of pacifism to this bloodbath. Chapter 6
Parry 50 times
Kill three enemies simultaneously
Kill five enemies simultaneously
Win the duel against an old firend.
Kill 75 enemies using the environment
Cook some kebabs in Chapter 5
Turn the ruins into a crypt in Chapter 4
Who's there? Chapter 3
Execute 30 enemies.
Do it the oldschool way in Chapter 2
Kill 25 enemies using the environment
Kill two enemies simultaneously
Feed the fish in Chapter 1