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