Here is the full list of all 25 Dungeons 2 achievements. It takes around 25-30 hours to unlock all of the achievements on Windows.
You won a multiplayer round in “King of the Hill” mode.
You completed the Dungeons 2 campaign!
You allowed all the nobles to arrive on the “A blood-red wedding” map, and still managed to complete the mission.
You managed to hold off all the nobles on the “A blood-red wedding” map. You rascal, you!
You have reached a respectable playing time. Glad to hear it! :)
You collected a total of 250,000 mana.
You mined a total of 1,000,000 gold.
You found the Wall of Ice in the Plaguelands.
Destroyed the Elf Forest with the Demons
You used the spell “Evil Strikes Back” once.
One of your dungeons reached the highest possible level at one point in time.
You annihilated all of the Alliance's bases in “Trolls from Hell”.
You collected a total of 25,000 mana.
You built a “Rolling Stone” trap and it was triggered!
You mined a total of 100,000 gold.
You killed a Unicorn in the campaign.
You collected a total of 2,500 mana.
You defeated Krowtoes, but he narrowly managed to escape.
Took the wrong turn in the Swamp Lands.
You simply fired a furious monster.
You ensured that King Robert met an untimely demise.
You owned 200 barrels of beer at one time in the game.
A creature steps into the Overworld for the first time in the campaign.
You mined a total of 10,000 gold.
The Prime Evil has died at least once on the first map.