The Halo: Master Chief Collection not only includes an HD remake of Halo 2, but an enormously-upgraded version of Forge - the feature that allows players to create their own multiplayer maps in Halo. This version is bigger and better than any previous iteration - you can really make huge and complex maps that work just as well as any of the pre-made maps.

Of course, if you're a PC gamer, this is nothing new - but for the console gamers out there, Forge is some next level stuff. Please, PC gamers, leave them alone and let them have this.