In Unrailed!, online or local, up to four players cooperate to create a railroad to keep the train from derailing en route to its destination.

[3] The game incorporates roguelike elements with procedurally generated terrain, resource management, and limited saves.

[4] Each time the train arrives at a station, it can be upgraded with various improvements by buying them with bolts earned while playing.

[8] At the end of the semester, the prototype received positive feedback from the jury and players at the final presentation.

However, the Nintendo Switch port was developed internally at Indoor Astronaut, because they wished to have more control over the quality of the game.