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