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