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