This game jam is for games that are non-euclidean or have abnormal properties in them. This can be put in a few different ways with examples such as portals, dimensional changes, and time changes. Portals can be actual portals that can be moved/ interacted with or ones that are not noticeable like a hallway that goes on forever or a room that's bigger on the inside then the outside. Dimensional changes could be involving a game that is 4d or switches between 3d and 2d but could also be a game where you switch between characters to interact with different objects or a game like superliminal where your perspective effects the environment.  Time changes are anything from having a timer once it has counted down resets everything like in 12 minutes or it could age the environment back thus allowing you to travel to blocked areas. 

Though keep in mind that these are just some examples and that it doesn't have to fit one of these ideas the most important thing is that the game is outside of the box.

Also the game does not have to be 3d and can be in any art style.