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