Here is the full list of all 26 Conarium achievements.
Experience the second ending.
Finish the game with 100% progress.
Experience the first ending.
Get all notebook drawings in the game.
Get all trophy items in the game.
Reach the final level.
Reach the ruins under Rub'al Khali.
Get all secrets in the game.
Find all documents in the game.
Examine all the notes and diagrams in the game.
Check all the wooden masks in the mansion.
Use the walkietalkie voluntarily, in every location that it is available.
Reach the Connection halls.
Solve the symbol drawing puzzle at the first try.
Examine all objects in the game.
Check all the books in the base and the mansion.
Get on the submarine.
Manage to run the Link Elevator.
Solve the radio room puzzle.
Walk out of opposite sides of the map outside the base.
Provide electricity to the base.
Finish the game without dying.
Reach the Mansion for the second time.
Die in five different ways.
Don't get caught by the mummies in the Connection halls.
Solve the puzzle on the cellar door without any clues.