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