Hey Daza, thanks for your interest. The glitchy textures are an issue I've so far been unable to replicate, and none of the solutions I've tried have worked. I've tried it on several different PCs, but with no luck. I've been meaning to take it to Unity Technologies, but my main priority has been getting the narrative system working. I'll get it sorted, but I don't know when, sorry.
You're absolutely right about the free demo. I've been iterating a lot on the core code, in order to get the narrative hooks in place, so gameplay has taken a back seat, unfortunately. I've had previous builds with some of the gameplay working, but it inevitably gets broken when I rework systems, so I've been putting it off until the important systems are all in place and working. I'm starting to focus more on the interaction systems, so I'll be adding weapons very soon. Maybe even a zombie apocalypse mode, to test those systems. I'll try to keep the free build updated regularly, but the interaction system (and therefore weapons) will always be disabled in the free build.
Anyway, thanks for downloading the demo. Sorry it doesn't work properly on your computer, but it would really help me if I knew what your PC specs are (graphics card, CPU etc.).
Incidentally, this page was never supposed to be public. I created it after receiving a couple of requests from interested gamers, and it only went public after RockPaperShotgun published the link. I know that's not really an excuse, but I'm working hard to make it worth your time.