The whole point in the stargate is to transport matter to other planets, so there will be a large number of planets for players to explore, and as the game grows it is likely that there will be more planets added. Fans will be able to visit some of the worlds explored in the Stargate SG1 series, you will also be able to visit many new worlds that were never seen on the Stargate show. Some planets will be vast and some will be confined to a smaller space.

Evolving Planets
One of the most exciting things that about the planets in stargate worlds is that overtime the worlds will change as the story line progresses, Some changes will occur because of player interference and some will change due to conquest this will make the game replayable.