Category · 3 posts

Behind the scenes

How EarthGuessr gets built — engineering notes, data pipelines, mapping infrastructure, and the technical decisions behind the world's satellite-imagery geography game.

Behind the ScenesMarch 5, 2026

Daily Challenges: Same View, Global Competition

Every day, every player sees the same five locations. Here is why a shared daily challenge changes how the game feels — and how we made sure no one can game it.

Behind the ScenesFebruary 7, 2026

Anti-Cheat: How We Keep the Leaderboard Fair

Server-side scoring, coordinate obfuscation, zoom restrictions, and a row-level security model that hides the answer until the round is over — how we make cheating expensive.

Behind the ScenesJanuary 15, 2026

Building EarthGuessr: Our Tech Stack Explained

Vite, React, Supabase, globe.gl, MapLibre, and a Playwright prerender pipeline that runs inside the Vercel build sandbox — the actual tech behind a real-time geography game.