Deal the final blow to an enemy Dreadnaught with your Scout

Enemy ship is destroyed by its own torpedo, rocket or mine

Win Mission 30 of the main campaign without using abilities

Destroy 3 enemy ships with one of your ships in a single turn

Complete Mission 17 or Mission 18 with 100% HP

Reach Grand Admiral rank in Skirmish mode

Destroy 500 enemy ships in Skirmish mode

Destroy 3 enemy ships by gas cloud in a single turn

Win 5 battles in a row in Skirmish mode without restarts

Make the last remaining enemy ship to crash into an asteroid

Collect all 90 stars in the main campaign