Halo Series
Ever since the days of Halo 3, the series has had a popular game mode known as Infection, and it doesn’t even feature the creepy Flood enemies. Infection was actually based off of a fan-made custom match type in Halo 2, and features one player as the “Infected,” against a whole team of other players.
This Infected zombie character is equipped with an Energy Sword and has increased speed and strength. Every time the Infected player kills someone, that person is also turned into an Infected, until ultimately everyone is a zombie. The winner is decided by whoever gets the most kills across multiple rounds.
Infected managed to be an incredibly fun variant on traditional Halo multiplayer, and it even made a comeback for the most recent release of Halo 5.
