Forge

Halo 3 Forge
The first iteration of Halo's famous map editor that launched with the game. Although very primitive compared to the state of forge now in Halo 5: Guardians, Halo 3's forge mode revolutionized the Halo franchise by introducing a new way to play and interact with the game. Despite the low expectations Bungie had on the capabilities with the new mode, the community took what little they had and created amazing and creative maps for players to enjoy...Some of which would be later shared on Forgehub
Check out this video of one of the first demonstrations of Halo 3's new mode and see how far Forge has come