Dubstep: Solar System v0.15 adds the Track Shop, a new button on the main menu.
Own the music you fly to. All 46 tracks — every planet, every round, plus the Star Power anthem — are now yours to keep: Track Credits: $0.99 each, or a 12-Pack for $9.99, a 25-Pack for $14.99, or Every Track for $24.99. Purchases go through Steam, right inside the game. Preview