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