The four player puzzle game had a disc release rumored pre-E3.
Tumblestone, the multiplayer puzzler from the Quantum Astrophysics Guild, will have a couple of release dates this summer.
The first release will come on July 12 with the game's digital release, followed a few days later by the game's launch as a Xbox Live Games with Gold title. A physical release for Wii U (and PlayStation 4) will then follow on August 30 from Nighthawk Interactive.
Nighthawk was rumored to be the physical publisher for the title when a preorder page went up on Amazon along with one for Runbow before E3.
