It looks like Minecraft, obvs, and building with cubes is certainly part of its foundation, but Chunks is built to be mega-moddable so who knows what it could become? Heck, even from a blockbuilding perspective, things like using the HTC Vive controllers to wave rollercoaster tracks into existence within the world looks pretty dang swish.
Garry's Mod gang Facepunch Studios have released their virtual reality sandbox game Chunks onto Steam Early Access.