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