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