There are 12 achievements worth a total of 200 points
Reach Level 20.
Kill 2500 Enemies.
Kill Lord Von Prong.
Kill Sergeant Orque.
Finish 50 Side Quests.
Destroy all 3 Queen Greems.
Complete 6 Spelunker Quests.
Discover all 30 Teleporting Outhouses.
Kill 100 Chickens.
Drink 50 Potions.
Dispense the Good, Vanquish the Evil.
Resurrect at an Outhouse.