Free estimation game of real numbers: guess how many trees grow on Earth or how many eggs fill an Olympic pool. Survive by landing within 10x of the real answer; your streak is your score. Unlimited questions.
Fermi Unlimited was submitted to SlowDen by Ethan Wu (Playdaily). SlowDen did not make this game - it is published here from the developer's own submission, added on 2026-09-15. It runs in the browser with no download, no install and no sign-up.