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