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