Skip to content
missumai
#11Games· launched Feb 2025

fly.pieter.com

A free multiplayer flight game in the browser, paid for by in-game ads.

Visit fly.pieter.com

What it is

Pieter Levels built a browser flight sim in public on X and sold planes, blimps, billboards and UFOs inside the game to sponsors as monthly subscriptions.

How it was built with AI

Coded mostly with Cursor and Anthropic's Claude models, which Levels says saved him 10-100x the time.

  • Cursor
  • Claude

Traction

Self-reported

$87,000 MRR from in-game ads 17 days after launch; 320,000 people had flown in the game

As of Mar 11, 2025. Stated by the founder or the tool maker. Not independently verified. Read the source

Sources

  1. Revenue update post on XX (@levelsio) · Mar 11, 2025 · checked Oct 20, 2026
  2. fly.pieter.com caseShipped & Paid · checked Oct 20, 2026