Here is the full list of all 49 Dark Messiah of Might and Magic: Elements achievements worth 1,000 gamerscore.
[Ranked] Kill more than 666 enemies in total for ranked matches
Win 20 matches hosted by yourself. Requires at least 8 players.
[Ranked] Win a ranked match 20 times
Win 10 Crusades on the Human side. Requires at least 8 players.
Win 10 Crusades on the Undead side. Requires at least 8 players.
Win a Crusade. Requires at least 8 players.
[Ranked] Complete a map in Blitz mode in a ranked match in less than 8 minutes.
Capture 3 enemy flags in the same match. Requires at least 8 players.
[Ranked] Score more than 3000 points in a ranked deathmatch
[Ranked] Score more than 1500 points as a Priestess in a ranked match
[Ranked] Not getting killed a single time in a ranked match, and killing at least 7 victims
[Ranked] Score more than 1500 points as a Mage in a ranked match
[Ranked] Kill 15 enemies before being killed in a ranked match
[Ranked] Score more than 1500 as an Archer in a ranked match
[Ranked] Kill the player who has just killed you in a ranked match
[Ranked] Score more than 1500 points as a Warrior in a ranked match
Win 10 team deathmatches. Requires at least 8 players.
Complete the tutorial
Kill 50 enemies only with bow
Kill 60 enemies only with sword
Kill 4 cyclops during your adventure
Defeat all enemies in Rubby's Arena
Kill 20 enemies with Backstab strikes
Kill 50 enemies with magic
Kill 50 enemies amongst spiders, undeads or ghouls
Recover 60% of relics
Recover 30% of relics
Recover all relics
Defeat Aratrok loyally without magic
Kill 10 enemies in the form of a demoniac
Complete the game in difficult mode
Save Ishtvan in the Necropolis
Save Leanna in the giant spider's den
Kill PaoKaï near the Necropolis
Recover the Skull of Shadows in the temple of the Spider Goddess
Complete the game
Take over the boat in the hands of necromancers
Find the gems in the temple of the Spider Goddess
Reach the Necropolis
Kill PaoKaï at the temple of the Spider Goddess
Make 5 enemies fall on a frozen ground with the 'Freeze' spell
Kill 10 enemies under the effects of adrenaline
Discover at least 42 secret places
Forge 3 different swords during your adventure
Kill 2 enemies at once while under the effects of adrenaline
Push 5 enemies into the void without be spotted by the victim
Kill 50 enemies using these methods: fire, pick, void and physical object
Weapon collection complete (Swords, Daggers, Staffs & Bows)
Equipment collection complete (Armors, Shields, Rings)