Bigger Worlds This mod adds 2 new world sizes: Giant and Gigantic. By default Giant map starts with 14 players and 28 city states and Gigantic map starts with 16 players and 32 city states. New map sizes are available at the Advanced Setup. The mod is currently an alpha version (there might be bugs) and thus should be considered as experimental. The mod has been tested with 64bit Windows 7 with 8GB RAM. Expect longer map generation and longer turns when using these new map sizes. You should also download one of the mods that add more City states to the game as these map sizes start with up to 32 city states. Mod currently available in-game Mods section. Basically this is a conversion the map sizes I had in Civ 4: Rise of Mankind modpack.