Patch Slicer is a web adaptation of the childhood knife-and-territory playground game. A circle of ground is split into one wedge per player, and you throw at a rival's land to cut it in two. They keep the better piece — you take what's left. Lose every patch big enough to stand on and you're out. Last one standing wins.
You win only what you cut, nothing more — territory itself may be in several pieces, and cutting the patch that joined two halves of someone's land doesn't hand you the far half. A piece you win that doesn't touch your own territory reverts on the spot. One throw is always exactly one turn.
Only ground you can still stand on counts. Scraps too small or too thin to stand on go dark and stop counting toward your total — run out of standable ground and you're knocked out. If nobody's been eliminated by the round limit, most standable land wins.