No missable achievements (plus 12 unknown)
Sign in with Steam or Xbox to track your progress, and:
Resurrect at an Outhouse
Kill 100 Chickens
Kill Sergeant Orque
Finish 50 Side Quests
Drink 50 Potions
Kill 2500 Enemies
Reach Level 20
Discover all 30 Teleporting Outhouses
Kill Lord Von Prong
Complete 6 Spelunker Quests
Dispense the Good, Vanquish the Evil
Destroy all 3 Queen Greems