It's possible to play alone if you install the game on two computers. Not the best experience, since the game is designed for two players, but definitely doable.
Why not play with your mother? I think you'd both have a lot of fun :)
A member registered Jan 02, 2022 · View creator page →
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Dive into the Parallel Experiment in this 2-player co-op puzzle game. Join forces to finally catch the Cryptic Killer.
Puzzle
Unravel the mystery of a cryptic box in this 2-player co-op puzzle game. Solve cooperative puzzles. Outsmart the killer!
Puzzle
A new lead turns up old doubts about an 'Unsolved Case'. In this co-op game solve puzzles and catch the Cryptic Killer.
Puzzle