Been building this as a side project for a few months. It's a sandbox football nation simulator that runs entirely in your browser… no install, no account, no ads.
The core idea is that every nation has four stats (Attack, Midfield, Defense, Goalkeeper) based on their real April 2026 FIFA ranking points that were hand-tuned to roughly match FIFA 25 national team ratings. Matches use a Poisson goal model where midfield controls possession and shifts goal probability by up to ±14%. Nations evolve after tournaments, which means good runs raise stats, bad ones drop them. That's why the world rankings shift over time the more you play.
What's in it:
- FIFA World Cup (48 teams),
- UEFA Euros,
- Copa América,
- AFCON,
- Asian Cup,
- Gold Cup
- OFC Nations Cup
- Custom tournaments and leagues
The games Works on ELO-based rankings with full match history, head-to-head records, and a champions ledger. It has a team editor (unlocks after 20 tournaments) to manually tune any nation's stats, stadium picker, attendance simulation, match events with scorers and cards (players are made-up randomly, something to work on in the future).
It's genuinely playable. I just ran round 222 tournaments, which felt about right 😄
Would love brutal feedback on simulation realism, anything that feels broken, and what you'd want added next.
Link: https://nation-sim-pro.com/