Braided

It is the night of the dead. You visit a cemetery said to hold the resting place of the physicist Ettore Majorana. As you cross the iron gate, the quantum realm takes you apart. You become a zombie in two pieces, a top half and a bottom half, joined by a faint line that remembers the path they walked. To get your form back, the two halves have to merge again. But coming together is not enough. Merge too soon and nothing remains. First you need to find a soul, and the only way to do that is to braid your way through the other things that live in the graveyard.

Nobody tells you the rules. Nothing on screen is scripted to look quantum. If a soul appears, or a merge goes wrong, it is because the physics said so. The game is a puzzle whose rules are the laws of a small quantum universe, and the challenge is to work them out.