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.
Restore health from near death to full
Kill 3 enemies while Vasily is near death
Beat all Arena levels.
Complete every chapter with 0 deaths.
Shut down the engines in Chapter 15
Forward, Forward, High Punch. Chapter 12
Perform 300 parries.
Mince some meat in Chapter 11
Be careful with the glass in Chapter 10
Be quicker than the big guys in Chapter 9
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
Cook some kebabs in Chapter 5
Shoot 500 enemies.
Turn the ruins into a crypt in Chapter 4
Restore 1000% of health
Who's there? Chapter 3
Execute 300 enemies.
Do it the oldschool way in Chapter 2
Kill 150 enemies using the environment
Complete the game
Complete the game on hardcore mode
Break 100 weapons
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
Perform 100 stealth kills.
Kill 75 enemies using the environment
Parry 50 times
Defeat the guardians.
Perform 40 stealth kills.
Kill five enemies simultaneously
Kill three enemies simultaneously
Win the duel against an old firend.
Shoot 50 enemies
Kill 25 enemies using the environment
Execute 30 enemies.
Feed the fish in Chapter 1
Kill two enemies simultaneously