Humble Bundle is a way for developers to put their best games together, and then ask users to pay what they want for them. Apparently it’s been so successful on Android, that they are coming back, with installment number three.

This time they are bringing five new games, four of which are FieldRunners, SpaceChem, Uplink, Bit.Trip Beat, which usually cost $2 or $3 each. You get to pay whatever you want for all four of them and a final one, Spirits, that you can unlock by paying at least the average donation of $5.75.

The Humble Bundle is focusing on Android right now, but all of these games are also available for Linux, Windows and Mac OS X – all DRM-free. So you can play these games even if you don’t have an Android device.

The Humble Bundle for Android 3 promotion will last for the next 2 weeks. You can donate for the games at the link below. There’s also the option to donate to EFF, the organization that is the most popular defender of digital rights, and Child’s Play, a charity for children. You can also leave a tip for the guys putting this whole project together and hosting the website.