For the next seven days naval strategy game Oil Rush is 50% off at online games distributer Gameolith.
The gaming title costs $20 if bought through the Ubuntu Software Center, but Gameolith are flogging it for $9.99 (£6.29/€7.61).
And this price isn’t just for Linux – Gameolith recently expanded their operating system support to include OS X and Windows.
The half-price offer is set to expire on Thursday August 16th.