Neon Break
A retro arcade side-scrolling brawler through a cyberpunk rain port, with grabs, pick-up weapons and a motorbike.
Links go to the official store or developer page. Last verified Nov 8, 2026.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- View demo on GitHubGitHubDemo · Demo; Windows build v18 in the repository's releasesFree
Download from the GitHub releases page.
Desktop · Official link verified Nov 3, 2026.
- View demo on BrowserBrowserDemoFree
Runs in a desktop browser. No download.
Browser (no download) · Official link verified Nov 3, 2026.
- View demo on itch.ioitch.ioDemo · The itch.io status reads In development; Windows build dated 7 Oct 2026 (R34)Free
Download from itch.io.
Desktop · itch.io
About Neon Break
A cyberpunk side-scrolling beat 'em up demo in the style of retro arcade brawlers, for Windows and desktop browsers. One stage takes you through a rain-soaked port entrance, a red-line blockade, a signal alley, a fight over a vehicle and a white-tower defence line to a boss, the Executive. You line up with enemies on the street's depth before punching, chain a three-hit combo, jump-kick, dash, grab and throw enemies into each other, pick up a baton, a pipe or a rail gun from the few enemies who carry them, and ride a powered motorbike that you can be knocked off. An Overload move costs 30 health. Waves of two to six enemies come through security doors, with flankers, gunners and heavies, and the boss is faster than the heavies and attacks more tightly after half health. A first clear is designed to take 10 to 15 minutes, and you can retry from the current wave. Keyboard or gamepad. The developer, kangxn, says in videos on Bilibili that they made it entirely by talking to the AI, without drawing a single image or writing a single line of code, even the difficulty curve, using OpenAI's GPT 6 Astra; it took about a day, and a later update spent about two days polishing enemy placement, enemy and boss AI so that the difficulty comes close to the level of “三国志” (Sanguozhi), in the developer's words. Free as a Windows download on GitHub and itch.io and in the browser on the developer's blog; the README and controls guide are in Chinese.
How it was built
Partially verifiedIn the description of a Bilibili video (12 Sep 2026, China time) titled “GPT 6 Astra 花了一天搓了个赛博朋克小姐姐打架的街机清版游戏” (GPT 6 Astra spent a day knocking out an arcade brawler of cyberpunk girls fighting), the developer writes: “纯 AI 口喷，一张图没画，一行代码没写做了个游戏。连难度曲线都是和 AI 商量让 AI 给做的。” (Made a game purely by talking to the AI, without drawing a single image or writing a single line of code; even the difficulty curve was worked out with the AI and made by it.) They add that GPT 6 Astra built it in about a day, mostly in one evening, and that they even saw it open the game itself to check the feel. A second video (7 Oct 2026, China time) says the developer spent about two days polishing it with GPT 6 Astra, on and off while watching TV, constantly telling the AI what to change. The itch.io page says “Created with GTP 6 Astra/6.1 Sol”. The developer names only OpenAI models, not the app or agent they used, so the tool is recorded as undisclosed.
- DeveloperSecond video, 用两天时间打磨了一下用 GPT 6 Astra 做的横版清关游戏: polished enemy placement, enemy AI and boss moves by repeatedly telling the AI what to change; “Vibe game 和 Vibe coding 一样，到最后都是各种规约和工作流” (vibe games, like vibe coding, end up being all conventions and workflows). — Bilibili (kangxn)
- Developeritch.io page: “Created with GTP 6 Astra/6.1 Sol, and with love of coz :)”. The AI disclosure ticks AI Assisted, Code, Graphics, Sounds and Text. — itch.io
Made in Godot 4.7.2 (per the README), exported for Windows and the web. Per the repository notices, the character, vehicle and environment illustrations were made with a built-in image generation tool; character animations were generated as video clips on the developer's own local video model service (MiniMax H3), then cut into frames and chroma-keyed into sprite sheets; the music was generated with a local ACE-Step 1.5 service, and the sound effects are synthesised by scripts. The developer says GPT made poor animation keyframes, which is why they set up the local video pipeline, and that they had no Suno account for the music at first. The notices say the title, characters, setting and assets are original and not taken from the arcade games used as references. The repository's release notes list automated checks of turning, weapons, input, space and combat. Enemy and boss behaviour is the game's own scripted AI; the game calls no AI service.
- Engine / framework
- Godot
- Languages
- Not disclosed
- Team size
- Not disclosed
- Initial build time
- About a day, then about two days of polishingDeveloper ReportedBilibili (kangxn)
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- ~100% of shipped codeDeveloper ReportedBilibili (kangxn)
“纯 AI 口喷，一张图没画，一行代码没写做了个游戏。”- GPT 6 Astra 花了一天搓了个赛博朋克小姐姐打架的街机清版游戏 (Bilibili)
- 用两天时间打磨了一下用 GPT 6 Astra 做的横版清关游戏 (Bilibili)
- Web build and Windows releases (GitHub)
Verification notes: AI use and development time from the descriptions of two Bilibili videos by kangxn (UID 343648047): 12 Sep 2026, 18:45 and 7 Oct 2026, 00:09 (China time, UTC+8), read through Bilibili's public video API on 8 Nov 2026. The first video names the game only as a cyberpunk arcade brawler but links the Windows download github.com/kxn/neon-break/releases/download/v18/NeonBreak-v18-windows.zip, so it is the same game; the second calls it the earlier retro arcade brawler. The 100% share is the developer's “一行代码没写” (did not write a single line of code). Stage, controls, weapons, enemies and play time from the repository's README and PLAY.md, read from a shallow clone on 8 Nov 2026; its latest commit, by Comman, is dated 12 Sep 2026, 18:42 (UTC+8), and the README says it holds only web build files. The Godot engine, the image, animation and music pipeline and the originality statement come from the repository's README and THIRD_PARTY_NOTICES.md. The tool is recorded as undisclosed because only the models GPT 6 Astra and GPT 6.1 Sol are named (the itch.io page spells it “GTP”); the notices' “built-in image generation tool” suggests an agent with image generation but no product is named. The comparison with “三国志” is the developer's own and about difficulty only; the developer does not name a specific game. The repository notices say no names or assets from the reference arcade games are used. Developer: Bilibili kangxn, GitHub kxn (commit author Comman) and the blog Kxn's eXercise Notes link each other; the itch.io account is named Comman Kang but is not linked from those pages, so that name is recorded only as an alias. itch.io: account Comman Kang, Windows, status In development, file dated 7 Oct 2026 (R34); no publication date shown. The web build at blog.kangkang.org/neon-break/ answered on 8 Nov 2026. The web build data and script were searched for AI service addresses and contain none. The first video had 6,758 views and the second 6,297 (observed; not metrics). The interface language was not checked in the game; the README, controls guide and Chinese font point to Chinese. The game was not played.
Development history
The developer posts a Bilibili video of the game, saying GPT 6 Astra made it in about a day, and links the v18 Windows build on GitHub.
A second Bilibili video (7 Oct, China time) shows a version polished over about two days.
DeveloperBilibili (kangxn)A Windows build dated 7 Oct 2026 (R34) is on itch.io.
Observeditch.io
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.
GitHub
Free Windows x64 download (NeonBreak-v18-windows.zip; keep the PCK file next to the EXE). The repository holds the web build only, not the project source.
Not publicly available: GitHub stars.
Browser (official site)
Free in desktop browsers (recent Chrome, Edge or Firefox); the README says the web build targets PCs. In the first video the developer said they did not plan to release the online version because of slow connections in China; the README later links it.
No public metrics recorded for this listing.
Not publicly available: Concurrent players (site), Monthly revenue, Gross revenue.
itch.io
Free Windows download (NeonBreak_Windows_20261007_R34.zip, 143 MB); extract and run NeonBreak.exe.
No public metrics recorded for this listing.
Not publicly available: itch.io rating, Downloads, Gross revenue.
Reviews & rankings
Not yet reviewed by our editors.
Not currently ranked.
Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| GPT 6 Astra 花了一天搓了个赛博朋克小姐姐打架的街机清版游戏 Bilibili (kangxn) · Chinese (Simplified) | Social post | Sep 12, 2026 | Nov 3, 2026 |
| 用两天时间打磨了一下用 GPT 6 Astra 做的横版清关游戏 Bilibili (kangxn) · Chinese (Simplified) | Social post | Oct 6, 2026 | Nov 3, 2026 |
| kxn/neon-break (README, PLAY.md, THIRD_PARTY_NOTICES.md) GitHub (kxn) · Chinese (Simplified) | Repository | Sep 12, 2026 | Nov 3, 2026 |
| Neon Break by Comman Kang itch.io | Store page | Not confirmed | Nov 3, 2026 |
| Official game page (language check) kxn | Official site | Not confirmed | Nov 3, 2026 |
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