御剑问道
A free 3D xianxia action RPG in the browser, in a blocky Minecraft-like style: fly on your sword through an endless wilderness and cut giants down at the nape. The developer says Opus 5.5 wrote the code, a little over 10,000 lines of three.js.
Official site 4.mcyyy.com, verified Nov 3, 2026. Linked from the developer's own V2EX post; the page credits the game to 永恒世界.
Rights holder / original work: Minecraft (Mojang Studios / Microsoft); Attack on Titan (Hajime Isayama / Kodansha)
The game's page calls it a Minecraft-style (我的世界风格) xianxia game, lists 我的世界 and MC among its keywords, says the in-game spirit-power bar is the original (Minecraft) experience bar, and is hosted on a Minecraft server's website. The page also names Attack on Titan (进击的巨人) for its giants, whose napes can be struck for a one-hit kill, and the developer's V2EX post says of that mechanic "懂的都懂抄的哪个" (those who know will know where it was copied from). We did not check whether any Minecraft textures or other assets are used. No source shows a licence or any connection to Mojang, Microsoft or the Attack on Titan rights holders. (永恒世界)
VibeGameDB lists this game only to document that it was made with AI coding tools. We do not host it, we do not represent the rights holder, and listing it does not mean it is licensed.
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 御剑问道
御剑问道 (roughly "ride the sword, seek the Way") is a free 3D action RPG with a xianxia (cultivation) story, drawn in a blocky style the game's page calls Minecraft-style. It plays in the browser, with keyboard and mouse on a computer or a touch joystick on phones. It opens with five disciples of the 凌霄宗 sect riding north to reinforce 昆仑关 (Kunlun Pass) when a demon army appears; its lord, 万骨魔君, rides a giant spider and tramples the others, and the senior disciple's last stand lets you escape on your flying sword. From there you head north through an endless wilderness of forest, mountains, desert, snowfields and demon lands that is generated as you go. Sword combat includes a three-hit combo, a charged sword wave, a sword dash that pins your flying sword into a giant and pulls you after it, a dodge that slows time when timed perfectly, a sword-rain ultimate and free sword flight. Giants have a glowing nape that kills in one hit, and each boss has its own attacks and openings. Story encounters include scouts, a fleeing old woman and the commander of 昆仑关, and slaying demons builds cultivation toward breakthroughs from 练气 up to 渡劫期. The game is hosted on the website of the Minecraft server 永恒世界, which credits the game to 永恒世界 and invites players to its server. The developer, posting on V2EX, says the game took about two days and that Opus 5.5 wrote the code, a little over 10,000 lines of three.js, while the developer played it and reported what was wrong. The page names Minecraft and Attack on Titan (see the IP notice).
How it was built
Partially verifiedIn a V2EX post (Chinese) titled "用 Opus 5.5 做了个 3D RPG 网页游戏" (made a 3D RPG web game with Opus 5.5), the developer says they tried Opus 5.5 over a weekend, wrote basically none of the code themselves (代码我基本一行没写) and had it write everything, a little over 10,000 lines of three.js. The developer's own job was mainly to play and tell it what was wrong; problems such as a giant with only one leg, the horse passing through trees and a skill that turned the whole screen white took dozens of rounds of fixes. For the boss spider's legs, the developer gave it the source of a Minecraft spider plugin they had written earlier, whose legs are computed with inverse kinematics, and it reproduced the step-by-step walking. The post does not say which app or tool Opus 5.5 was used through.
Play-and-report iteration with Opus 5.5 over about two days, per the developer: the AI wrote the three.js code while the developer played, reported bugs and asked for fixes over dozens of rounds. The boss spider's inverse-kinematics legs were reproduced by the AI from the developer's own earlier Minecraft plugin source. The developer asks players to post bugs in the thread so they can be fed back to the AI.
- Engine / framework
- three.js
- Languages
- Not disclosed
- Team size
- Not disclosed
- Initial build time
- About 2 daysDeveloper ReportedV2EX (wefgonujnopu)
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“代码我基本一行没写，全是让它写的，three.js 大概一万多行。我主要干的活就是玩，然后骂它哪里不对。”Verification notes: AI use, the model, the code size and the split of work come from the developer's V2EX post (27 Sep 2026, China time); the build time comes from the developer's reply the next day ("2 天左右", about two days) to a player asking how long it took to write, and the reply does not say whether that covers only the first version. The post links the game page, which is hosted on the website of the Minecraft server 永恒世界 and credits the game as 永恒世界出品 (made by 永恒世界); the V2EX account wefgonujnopu is tied to 永恒世界 only by that link and the mention of an earlier Minecraft plugin, so the developer is recorded as 永恒世界 with the V2EX handle as an alias. Story, controls and systems come from the game page's description. Location is from the site's ICP filing (蜀ICP备2022020525号, Sichuan); team size is not stated. The page is in Simplified Chinese. The game was not played; nothing on the page describes AI-generated content during play.
Development history
The developer posts the game on V2EX, saying it was made with Opus 5.5 over a weekend.
DeveloperV2EX (wefgonujnopu)Answering a player who had finished it, the developer says the game took about two days to write.
DeveloperV2EX (wefgonujnopu)
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)
Plays in the browser with no client download, per the page. The surrounding site has its own login for the Minecraft server; whether the game needs it was not checked.
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 |
|---|---|---|---|
| 用 Opus 5.5 做了个 3D RPG 网页游戏， MC 画风的修仙 V2EX (wefgonujnopu) · Chinese (Simplified) | Social post | Sep 27, 2026 | Nov 3, 2026 |
| 御剑问道 · 我的世界修仙网页游戏 - 永恒世界服务器 永恒世界 · Chinese (Simplified) | Official site | Not confirmed | Nov 3, 2026 |
| Official game page (language check) 永恒世界 | Official site | Not confirmed | Nov 3, 2026 |
