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