Rhem IV SE: The Golden Fragments (2016)

Vehicles, passages, gates and unfamiliar control panels form a dense network that you gradually learn to read. The Special Edition extends the original fourth adventure with extra areas and puzzles. Fixed views and mouse navigation give it an older rhythm, while the built-in colour picker helps distinguish clues. Bring patience for mapping and recording symbols: the challenge is tracking relationships across the site, with much less guidance than a modern escape-room game.