Having been based on GTA, the Grand Theft Auto: London 1969 and Grand Theft Auto: London 1961 mission packs employ the same multiplayer mechanisms, but allows the player to play multiplayer games in London, as well as Manchester for GTA London 1961. The choices of multiplayer modes in GTA is limited to only two: Cannonball run (a checkpoint race) and the traditional deathmatch. Multiplayer was originally standard in the PC versions of Grand Theft Auto, although the process of creating and joining servers requires manual identification of the one's IP address and also those of the playmates.