FireSky studio head Dan Elggren has revealed post-release content plans for upcoming sci-fi MMO Stargate Worlds.

Subscribers can expect a level cap increase from 50 to 52, new story lines, new worlds, new abilities and new armour sets, all for free.

In an interview with from Leipzig Games Convention, to be published later today, Elggrin said that the developer was already developing post-live content, despite the fact that the game is not due out until early next year.

He said: "We're actually adding post-live content. We're actually developing some of that post-live content before we launch. That's going to consist of new story lines, new worlds, new creatures to fight, as well as we're looking at adding two more levels, so going from 51, 52 and then so on and so forth. So that's new abilities, new armour sets and new ways of exploring the universe as well."

Content of this type, categorised as mini episodes and seasons, will be free, Elggren confirmed.

Elggren said: "If we move to Atlantis or another universe, then we'll have a boxed Atlantis expansion. But mini episodes and seasons, that's going to be free content that we're just going to hand out."

He said that the developer was hoping to avoid the situation seen in other MMOs where active players dwindle soon after launch and only return when expansions are released.

"I want to create a service that people will continually go through. It's like watching a TV series - you always watch the next episode. We want to be able to give them new episodes and new content that they're always going back and checking out."

Stargate Worlds is due out for PC early 2009.