Fire
Fires can be started either by using a molotov cocktail or by leaving an oven on for too long.
Fire will attract zombies. The player can also catch fire by standing too close a tile which is alight. In the future, fire can be used via the lighter which could be useful for burning corpses to reduce the chance of infection.
Bugs:
Fires started with molotovs cause a memory leak that crashes the game after some time.