Vidiot Game developer GZ Storm has released The 4th Wall, a first-person "abstract horror puzzler" for Windows and the Xbox Live Indie Games service. A free demo of the PC version can be downloaded here.

Judging from what I've played and the gameplay videos I've seen so far, The 4th Wall definitely measures up to Vidiot Game in terms of weirdness, and the horror element is skillfully executed -- it can be downright creepy at times. I'll be playing through this one later today for sure.

The 4th Wall is priced at $1, or 80 Microsoft points. The original version of the game, which is free but offers less content, is available here, though the author recommends not playing this release if you intend to play the paid version.