It's a geography challenge where you are given the name and elevation of a peak and have to determine where it is on the map. It's built using OSM data, you get 10 rounds of 2 minutes max to pinpoint the location of a random peak, either globally or in a specific region.
It's free and does not require an account to start playing, but you can create one if leaderboards are your thing.
On the technical side, I used DuckDB-WASM to offload spatial queries to the client, so that I can (hopefully) keep this running on low-end hardware. The server is running a Sveltekit app on Hetzner. Major props to Better Auth for making auth enjoyable.
Happy to hear feedback and answer questions.