Kalypso Media have announced they will be publishing four add-on packs for the hit space strategy PC game, Sins of a Solar Empire.

In Sins of a Solar Empire the future survival of the human race is at threat, with three mighty races fighting over control of the galaxy.

Players have the opportunity to command one of these three races and attempt to survive and dominate the galaxy. Success depends on the player's ability to govern their empire and to command its star-fleet.

The first add-on pack will include star bases, race-specific and generic upgrades, new artefacts and planet properties, and more.

The first Sins of a Solar Empire add-on will be available via download at the online platform Impulse in Q4, 2008.