# Fly
> AI-built multiplayer browser flight game
Canonical: https://ponicorn.com/startups/fly
Updated: 2026-09-10
## Key facts
- Headline figure: $87k MRR — Unverified, Mar 2025, medium confidence
- Categories: Games, AI Tools
- Status: Active
- Time to launch: 0 days (First playable prototype built in about three hours; $1M ARR / $87K MRR milestone reached on day 17.)
- Website: https://fly.pieter.com
## What it does
Built in public on X, viral founder demos and a high-profile Elon Musk share; monetized through plane purchases, sponsorships and in-game ads.

Founder X post reported $87K MRR / roughly $1M ARR 17 days after launch; earlier posts documented $57K and $67K MRR milestones.
## Founders
- [Pieter Levels](https://ponicorn.com/founders/pieter-levels.md)
## Technology
- Anthropic — Infrastructure (medium confidence)
- Cursor — Other (medium confidence)
## Growth channels
- X / Twitter — primary (medium confidence)
## Metric history
| Date | Metric | Value | Evidence | Source |
| --- | --- | ---: | --- | --- |
| 2025-03-11 (current) | MRR | $87k | Unverified · medium confidence · Founder-reported · Founder X post reported $87K MRR / roughly $1M ARR 17 days after launch; earlier posts documented $57K and $67K MRR milestones. | [1] |
## Alternatives to Fly
Same category, most liked first.
- [Chessigma](https://ponicorn.com/startups/chessigma.md): Chess review that explains the mistake instead of just marking it. · $6.1k MRR (✓ Verified, Aug 2026)
- [Debatium](https://ponicorn.com/startups/debatium.md): Modern conversation and debate game for couples · $23.1k MRR (✓ Verified, Aug 2026)
- [imposter.ai](https://ponicorn.com/startups/imposter-ai.md): Social deduction party game whose categories are written by a model. · $19.6k MRR (✓ Verified, Aug 2026)
- [SuperbulletAI](https://ponicorn.com/startups/superbulletai.md): AI-assisted Roblox game-system, VFX, mesh and animation creation · $9.5k MRR (✓ Verified, Aug 2026)
- [Talefy](https://ponicorn.com/startups/talefy.md): Branching AI stories where the characters remember what happened. · $24k MRR (✓ Verified, Aug 2026)
- [Vibe Sail](https://ponicorn.com/startups/vibe-sail.md): Multiplayer sailing world that runs in a browser tab. · $8k MRR (Unverified, Apr 2025)
## Sources
1. Fly on X — X, Founder post — https://x.com/levelsio/status/1899596115210891751
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Labels: ✓ Verified = the founder stands behind this profile (claimed or self-submitted), Ponicorn read the figure from a connected payment account, or a third party read it from a public dashboard; Unverified = said in public, estimated or inferred. Every figure carries its date and source. See https://ponicorn.com/how-figures-work.