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