Here is the full list of all 57 Orc Survivor achievements.
Reach level 100 in a run
Catch buzzsaws 20 times in a run
Complete a run without having the default starter weapon (claws or knife)
Vanquish a warden of the deep
Vanquish Nightmare
Vanquish King Slime
Equip your first hat
Reach a gem streak of 500
Eat or drink 6 food items in a run
Unlock a rare weapon modifier
Vanquish G0l3m MK5
Vanquish Spiralius
Vanquish Biggus Piggus
Survive 25 runs in the Colosseum
Slay 100,000 enemies
Run 237 miles
Consume 250 meat
Unlock the Weapon Master feature for any class
Juggle the boomeraxe for 30 seconds
Reach max rhythm with Battle Ballad
Complete a run without opening a chest
Complete a run without being fully leveled
Complete a run without eating meat
Complete a run with 7 weapons
Unlock all 10 warrior weapons
Complete the Colosseum on the first difficulty
Complete the Colosseum on the third difficulty
Complete the Colosseum on the fifth difficulty
Complete the Colosseum on the tenth difficulty
Unlock all boons
Kick open 10 gachaballs in a run
Kill no enemies in the first 5 minutes of a run
Complete a run with only 1 weapon
Survive 25 runs in the Underground
Complete the Underground on the first difficulty
Complete the Underground on the third difficulty
Complete the Underground on the fifth difficulty
Complete the Underground on the tenth difficulty
Unlock all 10 rogue weapons
Spread pox 500 times in a run
Pick up 5,000 XP with shadow clones in a run
Vanquish Lich
Unlock all 10 mage weapons
Infuse 3 weapons with Fire in a single run
Infuse 3 weapons with Ice in a single run
Infuse 3 weapons with Water in a single run
Infuse 3 weapons with Lightning in a single run
Collect 30 psydrangea seeds in a single round
Spin an object all the way off screen with telekenesis
Vanquish the Queen
Vanquish the Dark Knight
Vanquish the Emperor
Survive 25 runs in the Palace
Complete the Palace on the first difficulty
Complete the Palace on the third difficulty
Complete the Palace on the fifth difficulty
Complete the Palace on the tenth difficulty