MoonCraft
Free · play online in your browser, no download
An online real-time strategy match on the Moon in which you can jump out of the commander's view and fight in first person.
Official site mooncraft.ericcampbell.dev, verified Nov 3, 2026. Entry URL submitted in the official Vibe Jam 2026 games data under the X handle ericcampbell59, hosted on a subdomain of ericcampbell.dev, the website linked from that X profile (name Eric Campbell). The ericcampbell.dev home page does not list the game.
Rights holder / original work: Optimus and Cybertruck (Tesla, Inc.)
The worker units are called Optimus, the name of Tesla's humanoid robot, and the game's script loads the cybertank's 3D model from files named “cybertruck.glb” and “cybertruck-ref.png”, after Tesla's Cybertruck. The game does not otherwise name Tesla; no source shows a licence or any connection to Tesla. (Eric Campbell)
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 siteBrowserReleased · Version 0.1Free
Runs in a desktop browser. No download.
Browser (no download) · Official link verified Nov 3, 2026.
About MoonCraft
An online 3D game set on the Moon that mixes real-time strategy with a first-person mode. From a top-down view you gather resources with Optimus worker units, build a supply depot, sensor tower, robotics factory, Tesla coil defences, solar arrays and battery banks, and train skirmishers and cybertanks; power is a resource of its own, and training stops in a brownout if generation and storage fall short. Pressing Space jumps you out of the command view into a first-person character with weapons and respawns, and the game counts your frags. Matches are found through an online queue, and the game fills in with bots when no opponent is waiting. The version online on 5 Nov 2026 is labelled v0.1; the entrant's jam pitch was simply “Moon based FPS”, with Quake 3 named as the inspiration, so the game has grown since the jam. 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 Claude Code as the tool. It finished 460th of 945 entries. Free in the browser.
How it was built
Partially verifiedIn the official Vibe Jam 2026 submission the entrant lists Claude Code as the tool and answers Yes to the AI-written field. No devlog describes how Claude Code was used or which model ran it, and the submission covers the jam version only; the game has changed since.
- OfficialJam rule 3: at least 90% of the code has to be written by AI. — Vibe Jam (Pieter Levels)
Built for the Cursor Vibe Jam 2026 on Three.js, with Claude Code named as the tool. Online matches run through a PartyKit game server on the developer's account (mooncraft-server.ericc59.partykit.dev).
- Engine / framework
- Three.js
- Languages
- Not disclosed
- Team size
- Not disclosed
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
Verification notes: Tool (Claude Code), engine (ThreeJS), genre (Shooter), pitch (“Moon based FPS”), inspiration (“Quake3”) and the multiplayer (Yes), mobile (Yes) and portal (Yes) flags from the entrant's answers in the official Vibe Jam 2026 games data (submitted 14 Apr 2026, 14:45 UTC; final rank 460 of 945 entries, no award), re-read on 5 Nov 2026; rule 3 on the jam page requires at least 90% AI-written code. Developer: the jam data gives the X handle ericcampbell59, whose profile (name Eric Campbell, location “SF & Dallas”, bio “building”) links ericcampbell.dev; the game runs on a subdomain of that site, and its server runs under the account name ericc59. Team size is not stated. Buildings, units, power rules, the first-person mode and the match queue come from the game's interface and script on 5 Nov 2026 (version 0.1); the game was not played. The entrant answered Yes to mobile support, and the script adds an on-screen joystick and buttons for the first-person mode on touch screens, but touch control of the commander view was not confirmed, so the listing is marked as browser only. The opponents are bots in the game's own code; no calls to AI services 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 14 Apr 2026 (UTC).
Development history
Entered in the Cursor Vibe Jam 2026 (submission date in the official games data, 14:45 UTC); the jam required at least 90% AI-written code. Final rank 460 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 |
| MoonCraft (game page and script) Eric Campbell | Official site | Not confirmed | Nov 3, 2026 |
| Eric Campbell (@ericcampbell59) — X profile X | Social post | Not confirmed | Nov 3, 2026 |
| Official game page (language check) Eric Campbell | Official site | Not confirmed | Nov 3, 2026 |
