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