Full list of all 33 ARK: Survival Evolved achievements worth 1,500 gamerscore. It takes around 1-2 hours to unlock all of the achievements in the base game.
The base game contains 18 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 15 achievements worth 500 Gamerscore.
You reached the maximum survivor level
You defeated ARK's first Guardian!
You defeated ARK's second Guardian!
You rode on the back of a Giganotosaurus!
You tamed a Dinosaur!
You Rode a Dinosaur!
You rode on the back of a T-Rex!
You survived a full day and night on the ARK!
Unlock All Achievements.
Level one of your dinosaurs to the maximum level.
Personally retrieve all the Artifacts.
Find the Dossiers of each of ARK's initial Specimens.
Defeat ARK's first three Guardians.
Defeat ARK's third Guardian.
Uncover more than 80% of the Mini-Map.
Reach the highest mountain peak of the ARK.
Reach the bottom of the ARK's oceans.
Cure yourself of Swamp Fever.
You Ascended off the ARK, at Gamma level!
Defeat the final boss on Medium difficulty
Defeat the final boss on Hard difficulty
Discover 10% of the Explorer Notes on the ARK.
Discover 20% of the Explorer Notes on the ARK.
Discover 30% of the Explorer Notes on the ARK.
Discover 40% of the Explorer Notes on the ARK.
Discover 50% of the Explorer Notes on the ARK.
Discover 60% of the Explorer Notes on the ARK.
Discover 70% of the Explorer Notes on the ARK.
Discover 80% of the Explorer Notes on the ARK.
Discover 90% of the Explorer Notes on the ARK.
Discover 100% of the Explorer Notes on the ARK.
Tame at least one of every tameable creature on the ARK
Defeat the Guardians of The Center