Here is the full list of all 28 Super Dungeon Tactics achievements worth 1,000 gamerscore.
Win an encounter after 40 rounds.
Use 60 consumables in a single encounter.
Complete a quest with a party of 4 or more heroes equipped with only ranged weapons.
Complete a quest with a party of 4 or more heroes equipped with only melee weapons.
Complete a quest with a party of 3 or more heroes without weapons.
Kill 50 or more enemies in a single encounter.
Kill 5 or more Minibosses in a single encounter.
Win an encounter having lost 4 heroes.
Obtain an item of Mystic quality.
Complete a quest with a party of 4 or more that have Mystics in every slot.
Kill 7 or more enemies in a single attack.
Reach maximum Aggro on all heroes in a party of 4 or more.
Have a skull assigned to 6 or more heroes in a round.
Have villagers deal 6 or more damage in a single campaign encounter.
Win a campaign encounter with only villagers remaining.
Have 25 or more squares on fire simultaneously.
Have a hero defeat themselves in combat.
Have 16 or more dice roll at once.
Complete the final campaign quest on Casual or higher.
Complete the final campaign quest on Easy or higher.
Complete the final campaign quest on Normal or higher.
Complete the final campaign quest on Veteran or higher.
Complete the final campaign quest on Xtreme.
Complete an Xtreme encounter with no hero deaths.
Defeat all dummies in a Training quest.
Complete a multi-encounter quest on Veteran or higher without using potions.
Kill 3 or more enemies with a multi-attack ability.
Lose a hero to a training dummy.