Multiplayer does exist in most of the games. Due to how long it takes to finished a game, it requires a lot of patience for all those playing.
Things determining game length
- Size of the map
- Number of people playing
- Schedules of everyone playing. Make certain you are all going to be able to play at the same time.
- How long it takes some people to decide what to do each move.
- Whether anyone is so lame they'd try to stall the game instead of admitting defeat once they saw themselves loosing too badly to recover.