I remember seeing this on r/proceeduralgeneration a while back - it's hard to forget an art style as distinct as that. I'm really glad he did end up putting it on steam, because it does look like a really interesting toy, even if there's not much game to it yet.
People often forget the first versions of Minecraft weren't much more than a toy either, and look at it now.
Creative mode, where you have infinite blocks and just build stuff, was free to play online through the Java applet. That was I think until beta came out.
People often forget the first versions of Minecraft weren't much more than a toy either, and look at it now.