BeatPaws
Free · play online in your browser, no download
A 3D rhythm game with neon cat performers and four beat lanes; ten tracks, no login, and a second player on the same keyboard.
Official site beatpaws.vercel.app, verified Nov 3, 2026. Linked as “Try App” from the “BeatPaws with Codex” project card on the developer's own portfolio (swhan0329.github.io), and the entry URL submitted in the official Vibe Jam 2026 games data under the X handle swhan0329.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- Play free — official siteBrowserReleasedFree
Runs in a desktop or mobile browser. No download.
Browser (no download) · Mobile · Official link verified Nov 3, 2026.
About BeatPaws
A 3D rhythm game in the browser. Neon cat performers bounce down four beat lanes while you hit the notes with A, S, D and F and dodge hazards; a second player can join on the same keyboard with H, J, K and L. There are ten tracks with names such as Midnight Meow FM, Laser Yarn Chase, Neon Alley Sprint and Bubble Bass Pounce, several difficulty charts and map themes, local rankings and an optional global leaderboard that can be filtered by country, and the game starts without menus, logins or loading screens. On phones it is single-player, with four large pads at the bottom of the screen. The entrant's pitch says the cats are AI-generated, and that the game was inspired by arcade rhythm games and retro neon worlds. The developer, Seowoo Han, describes it as a playable web rhythm game built with Codex and has given a talk about how its “AI-written code” became a real product. It was made for the Cursor Vibe Jam 2026, whose rules required at least 90% of each game's code to be written by AI; the official submission lists Codex as the tool. It finished 468th of 945 entries. Free in the browser.
How it was built
Partially verifiedThe developer's portfolio says the game was built with Codex for Vibe Jam 2026 and describes the build process as “shipping AI-written code as a real product”; a talk listed there covers “how AI-written code becomes a real playable product through small loops, playtesting, feedback, and iteration”. In the official Vibe Jam 2026 submission the entrant lists Codex as the tool and answers Yes to the AI-written field. The developer's X profile describes them as an OpenAI Codex Ambassador (community). The entrant's pitch says the cats are AI-generated; the tool used for them is not named. No model is named and no code share is given.
- DeveloperPortfolio project card “BeatPaws with Codex”: “Built a playable web rhythm game with Codex for Vibe Jam 2026, then turned the build process into a developer-facing talk about iteration loops, playtesting, feedback, and shipping AI-written code as a real product.” — Seowoo Han
- DeveloperOfficial Vibe Jam 2026 submission: made with “Codex”. — Vibe Jam
- OfficialJam rule 3: at least 90% of the code has to be written by AI. — Vibe Jam (Pieter Levels)
Built with Codex for the Cursor Vibe Jam 2026 on Three.js. The developer's portfolio describes the process as small loops of iteration, playtesting and feedback, and lists a talk about it at Dankook University. The cat performers are AI-generated, according to the entrant's pitch. The game's music manifest lists the ten tracks as generated in advance with Google's Lyria 3 model (provider “gemini-lyria-3”) and they ship as MP3 files; nothing is generated while you play.
- Engine / framework
- Three.js
- Languages
- Not disclosed
- Team size
- Not disclosed
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“Built a playable web rhythm game with Codex for Vibe Jam 2026, then turned the build process into a developer-facing talk about iteration loops, playtesting, feedback, and shipping AI-written code as a real product.”Verification notes: Tool (Codex), engine (ThreeJS), genre (Rhythm), pitch, inspiration and the multiplayer (Yes), mobile (Yes) and portal (No) flags from the entrant's answers in the official Vibe Jam 2026 games data (submitted 1 May 2026, 02:50 UTC; final rank 468 of 945 entries, no award), re-read on 5 Nov 2026; rule 3 on the jam page requires at least 90% AI-written code. The Codex statement is on the developer's own portfolio, which links the game. Developer: the jam handle swhan0329 belongs to the X profile Seowoo Han (Seoul, South Korea; “Production AI engineer in Seoul”, “OpenAI Codex Ambassador (community)”, “Cerebras Ambassador”), which links the portfolio; the portfolio also gives the Korean name 한서우. The ambassador role is a community affiliation with the maker of the named tool. Team size is not stated. “Multiplayer” here means two players on one keyboard plus an online leaderboard. Tracks, controls and modes come from the game page and script; the game was not played. The game's code was checked for calls to AI services and none were found. The jam page's widget counters were not checked for this game. The release date is not stated; the jam submission is dated 1 May 2026 (UTC).
Development history
Entered in the Cursor Vibe Jam 2026 (submission date in the official games data, 02:50 UTC); the jam required at least 90% AI-written code. Final rank 468 of 945 entries, no award.
Game performance
Each figure measures something different — concurrent players, owners, downloads and sales are never interchangeable and are never added together. Labels show where each number comes from.
Browser (official site)
No public metrics recorded for this listing.
Not publicly available: Concurrent players (site), Monthly revenue, Gross revenue.
Sales & revenue (all platforms)
Browser game — there are no downloads to count.
Reviews & rankings
Not yet reviewed by our editors.
Not currently ranked.
Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| Cursor Vibe Jam 2026 — rules, prizes and game stats Vibe Jam (Pieter Levels) | Official site | Not confirmed | Nov 3, 2026 |
| Vibe Jam 2026 games data (entrant submissions, final rank, awards) Vibe Jam | Official site | Not confirmed | Nov 3, 2026 |
| BeatPaws - Free 3D Neon Cat Rhythm Game (game page and script) Seowoo Han | Official site | Not confirmed | Nov 3, 2026 |
| 한서우 (Seowoo Han) — portfolio: project card “BeatPaws with Codex” and talk “Building BeatPaws with Codex” Seowoo Han | Official site | Not confirmed | Nov 3, 2026 |
| Seowoo Han (@swhan0329) — X profile X | Social post | Not confirmed | Nov 3, 2026 |
| Official game page (language check) Seowoo Han | Official site | Not confirmed | Nov 3, 2026 |
Similar games
