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