Indie developer, Manic Game Studios, has just released its action puzzler, Critical Mass. It's a game we loved (read our review here), and it's already been discounted heavily.
Between July 1 and 10, you can pick it up for 50 per cent off from the official website, CriticalMassGame.com. The Steam and ImpulseDriven prices remain the same ($US9.99).
It's worth the full price, let alone the discount, so do go and pick it up now!