An online games company is offering a bundle of four games for a 'pay-what-you-like price' - as long as you pay that price in bitcoins.
The four games are Eufloria HD and Classic, World of Goo, And Yet It Moves, and Spirits.
You can set your own price for the bundle - as long as you pay in bitcoins. At the time of writing the average price paid was 0.2 bitcoins - currently worth $23 or £15.
The company will donate ten per cent of all proceeds to the Electronic Freedom Frontier.
The games developers will also get paid in bitcoins.
The deal is only available for two weeks - until May 30.
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