Campaigns

 are a game mode in Streets of Rogue. They consist of a finite number of custom-made floors/levels, linked together. The general theme is that it's a story, say a zombie invasion or a crossover from a notable video game other than this one.

It may be almost entirely custom content, or it may look and feel quite similar to the vanilla Streets of Rogue levels.

It can be accessed from Start Game in the main menu.