Ever since the Assassin's Creed franchise added multiplayer, fans of the series have known what to expect. This year's Assassin's Creed 4 also includes multiplayer, of course. However, it adds a new feature that promises to shake things up.

"Game Lab" lets players create their own rules in online matches. For example, you can create a mode where players can only be killed using pistols. You can remove specific abilities. According to Ubisoft, there are 200 different things you can tweak when creating custom matches.

The UbiBlog details one example of a Game Lab match. Dubbed "Frantic," the cooldown time on abilities has been reduced, and every action earned one point: assassinations, ground finishes, and stuns. This variant apparently encourages people to run around frantically, instead of stealthily like in the main game.