Full list of all 15 Crimson Alliance achievements worth 250 gamerscore. It takes around 12-15 hours to unlock all of the achievements in the base game.
The base game contains 12 achievements worth 200 Gamerscore, and there is 1 DLC pack containing 3 achievements worth 50 Gamerscore.
Find and collect all 33 Soul Anchors.
Carry the present out of Palace of Death on at least hard difficulty.
Earn a gold medal or better on every Main Campaign level on at least normal difficulty.
Earn a gold medal on Fall of Byzan with each character class.
Revive yourself while playing alone.
Achieve a score multiplier of 8X on at least normal difficulty.
Kill 25 enemies with explosive barrels in a single level.
Defeat the Soul Siren.
Max out any character stat.
Complete Requiem.
Defeat Gashadokuro, the Death Knight.
Unleash your Ultimate attack.
Survive Fistful of Coins wave 7 on at least normal difficulty.
Complete Inferno.
Complete Dead Among Us.