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