Indie game developer 10tons is celebrating their 10th anniversary this weekend. To celebrate they want to do it with the fans and have discounted all of their games. The formats covered by the sale are iOS, Android, Windows Phone 8, Windows 8, Mac OS X, Blackberry 10 and Ouya with 10-25 titles on each. Notable titles in the batch include the reviewed Trouserheart and Sparkle 2 which is being discounted for the first time since release. If you have been interested to try any of their titles, now is the best time to give them a go with titles ranging from free or costing roughly £.79 or $0.99 depending on the device.