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