Here is the full list of all 39 Rogue Heroes: Ruins of Tasos achievements.
Collect acorns for Evie
Defeat Omega Titan and save Tasos
Spend 150,000 total Gems
Defeat Glaciostraza, Guardian of Kryomar Temple
Collect 100,000 total Gems
Harvest 50 crops
Stop the blizzard on Mount Sekoset
Dig up 20 buried objects
Defeat Kaimieror, Guardian of Fyrotek Castle
Stop the lava flow in the Overgrowth
Defeat Necrosaur
Bust up 100 crates
Spend 50,000 total Gems
Defeat Rhizomorph, Guardian of Welestar Chamber
Open 200 chests
Ride in a Croaker in Crumwell Swamp
Defeat Koleoptera, Guardian of Terakar Keep
Light 100 torches
Build all buildings
Collect 10,000 total Gems
Break 500 pots
Spend 5,000 total Gems
Cut down 500 bushes
Destroy 500 monsters
Build 10 buildings
Build 5 buildings
Collect 1,000 total Gems
Acquire the Book of Beasts from Nik
Build Griff's Workshop
Die and be resurrected
Catch a fish
Block 100 projectiles with the shield
Collect all Power Spheres
Record all enemies in the Book of Beasts
Collect all classes
Collect all equipment
Catch all fish types
Open all Shortcut Ramps
Reach floor 25 in the Endless Abyss