Manngez/orten ? reverse-engineered prompt

Build me a Swedish geography game called ORTEN where 2 to 8 people take turns naming places and drawing a line between the new place and the previous one.

The goal is to avoid crossing an older line, because if that happens the player is out. Make it work nicely on both mobile and desktop, with a map you can zoom and drag, clear turn status, a running list of all chosen places, score tracking, and a simple results screen. It should support both local play and online rooms with a room code, where each player enters their place on their own phone and everyone stays synced. Please include a fast blitz mode too, plus optional quiet sound effects.

Use offline map and place data so the game still works without a server, and make the final build easy to host as a single page, like on GitHub Pages. If you need current docs for anything, look them up online.