The third in Wolfire Games' Pay-what-you-want indie game selections released today, titled the Humble Voxatron Debut.

Just one game this time: Voxatron, a voxel-based platformer-shooter with open-source support for content generated by the user.  The game has been released in a Minecraft-like alpha state, with those buying the game guaranteed access to all of developer Lexaloffle's future content updates.

At the time of writing, the promotion has grossed almost $200,000 from over 50,000 buyers. As is rapidly becoming a tradition, Minecraft developer Markus "Notch" Persson sits atop the top contributors chart after paying $2,000.

As has always been the case, buyers can dictate what money to pay, and how it's split between the developer, charities EFF and Child's Play, and the Bundle organisers.  Presenting only one alpha stage game may be a risky move for them; but we'll keep on top of this.  Watch the trailer below.

If you're already convinced, head on over to humblebundle.com.

UPDATE: Two other games also come with the Voxatron debut.  The Binding of Isaac and Blocks that matter are now included in the pack. 

UPDATE: $50k made in the first day of sales.  Impressive!