xp outbid

It's a Windows XP desktop in the browser. Every window on it is someone's project. You pick a size, drag it where you want it, and bid for z-index. Highest bid sits on top of everything that overlaps it. If someone covers you, there's a "bring to front" button that only charges the difference plus $1.

Small window is $1, so this is not exactly a get rich plan.

The six windows there now are free placeholders (dev tools I use) so the desktop wasn't empty on day one. They're marked as free and have a $0 bid, so anything real goes on top of them.

Other stuff: you can drag windows around (only on your screen) to see what's underneath, there's minesweeper and reversi, Clippy shows up, and all the XP sounds are generated with Web Audio.