--- title: Show HN: I built a multiplayer game where you're an... description: Catcopter is a free multiplayer browser game where cats with propellers on their paws fly and brawl for catnip over tropical islands. It offers five classes... canonical: https://daily.dev/posts/show-hn-i-built-a-multiplayer-game-where-you-re-an-aerial-fighter-cat-nkpfqunp6 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Show HN: I built a multiplayer game where you're an aerial fighter cat | daily.dev og:description: Catcopter is a free multiplayer browser game where cats with propellers on their paws fly and brawl for catnip over tropical islands. It offers five classes... og:url: https://daily.dev/posts/show-hn-i-built-a-multiplayer-game-where-you-re-an-aerial-fighter-cat-nkpfqunp6 og:image: https://api.daily.dev/og/posts/nkPfQUnP6.png og:image:alt: Show HN: I built a multiplayer game where you're an aerial fighter cat og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Show HN: I built a multiplayer game where you're an aerial fighter cat **[Hacker News](https://daily.dev/sources/hn)** · 1 min read · 0 upvotes · 0 comments ## Summary Catcopter is a free multiplayer browser game where cats with propellers on their paws fly and brawl for catnip over tropical islands. It offers five classes and team modes, with no download required. The current mode, Catnip Brawl, is a free-for-all where players grab catnip and knock it out of opponents, with 29 people playing. One class, the Gunship, has four paw rotors and a machine gun and is described as the all-rounder. A Discord server is linked for finding players and sharing clips. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community take How the wider developer community reacted, aggregated from 1 discussion and 34 comments across hackernews (as of 2026-10-30). **TL;DR:** Reception is largely enthusiastic and playful, with people enjoying the flying-cat brawling concept, though some hit technical snags (notably Firefox crashes) and raised minor feature requests. **Sentiment:** 70% positive · 20% mixed · 10% skeptical **The case for** - Many found the game genuinely fun and charmingly absurd. - The core concept and mechanics were praised as cool and worth continuing to develop. - The relatable backstory of sitting on the domain for years resonated with people. **The pushback** - Firefox compatibility is broken for at least one tester, with WebGL context loss and a stuck loading screen. - AI-generated art assets are noticeably identifiable as AI-made, though seen as improvable. - No mobile fullscreen option, and players mostly cluster into the default game mode, leaving other modes empty. - Some wish the project were open sourced. **By community** - hackernews (positive): Most feedback is upbeat and encouraging, mixed with bug reports (especially Firefox issues), questions about the tech stack, and light-hearted tangents about AI-generated assets and old domain names. **Open questions** - Will the Firefox/WebGL crash be fixed? - Could the project be open sourced? - Will the default game mode be made dynamic so other modes get played? **Highlights** > Here's the console output. It get's stuck at 72%... "painting or something" on progress bar. THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed. 3mykc1x1fjgyq.js:5:331 WEBGL_debug_renderer_info is deprecated in Firefox and will be removed. Please use RENDERER. 1ydg98ua2yutx.js:2:5381 WebGL context was lost. 1ydg98ua2yutx.js:2:5532 THREE.WebGLRenderer: KHR_parallel_shader_compile extension not supported. 3mykc1x1fjgyq.js:5:331 Script terminated by timeout at: ld@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... L@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... lU/this.getUniforms@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... this.renderBufferDirect/y<@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... this.renderBufferDirect@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... i@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... i@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... i@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... i@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... i@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... l1/this.render@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... this.render@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:2... render@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:5... render@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:5... render@https://catcopter.com/_next/static/chunks/2d2hov5bowo-5.js:4... warm@https://catcopter.com/_next/static/chunks/0_l59d-9nj-se.js:2... 2d2hov5bowo-5.js:2319:8599 > — [jnellis on hackernews](https://news.ycombinator.com/item?id=50309134) > Miss the days where these kinds of posts were a jumping off point for technical discussions about gamedev. Guess learning that people use a whole stack of LLMs for these kinds of projects now is also interesting. > — [Fraterkes on hackernews · 2 comments](https://news.ycombinator.com/item?id=50307436) > This is fun and nice idea for a multiplayer game, but will be cool if you open sourced it. But, still good work. > — [modinfo on hackernews · 1 comments](https://news.ycombinator.com/item?id=50308837) > I didn’t know I had a gay furry tendency. This game awakens the gay furry tendency hidden inside me. While playing as a muscular cheese cat male character, the darkness inside me woke up.... > — [jdw64 on hackernews](https://news.ycombinator.com/item?id=50307523) > Would be cool if the default game mode changed when there were enough players; I think everyone goes into the catnip mode just because it is default, no one is ever in the other modes! > — [adzm on hackernews](https://news.ycombinator.com/item?id=50308717) **Source threads** - [hackernews](https://news.ycombinator.com/item?id=50305320) · 63 points · 34 comments ## Similar posts on daily.dev - [Check Out This Cozy Game in Which You Have a Cat on Your Desktop](https://daily.dev/posts/check-out-this-cozy-game-in-which-you-have-a-cat-on-your-desktop-mwzkp6q2b) · 80 LEVEL · 0 upvotes · 0 comments - [Robot Dog In Browser](https://daily.dev/posts/robot-dog-in-browser-vnz8ru4hn) · Hackaday · 0 upvotes · 0 comments - [Battle Drones—a vibe coded RTS with audio-based multiplayer](https://daily.dev/posts/battle-drones-a-vibe-coded-rts-with-audio-based-multiplayer-q6u0zp4ie) · Simon Willison · 0 upvotes · 0 comments - [This Co-Op Adventure Game Will Have You Playing as Two Medieval Cats](https://daily.dev/posts/this-co-op-adventure-game-will-have-you-playing-as-two-medieval-cats-jjwvawvjc) · 80 LEVEL · 0 upvotes · 0 comments - [This Claude-built game lets you destroy any website, and it's absurdly addictive](https://daily.dev/posts/this-claude-built-game-lets-you-destroy-any-website-and-it-s-absurdly-addictive-7loajxhsb) · XDA Developers · 1 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/show-hn-i-built-a-multiplayer-game-where-you-re-an-aerial-fighter-cat-nkpfqunp6) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Show HN: I built a multiplayer game where you're an aerial fighter cat","url":"https://daily.dev/posts/show-hn-i-built-a-multiplayer-game-where-you-re-an-aerial-fighter-cat-nkpfqunp6","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/show-hn-i-built-a-multiplayer-game-where-you-re-an-aerial-fighter-cat-nkpfqunp6"},"datePublished":"2026-10-30T18:04:44.068Z","dateModified":"2026-10-30T21:05:25.263Z","description":"Catcopter is a free multiplayer browser game where cats with propellers on their paws fly and brawl for catnip over tropical islands. 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