Burn Heroes
A free idle multiplayer RPG in the browser: level up, rebirth, fight bosses and other players in real time.
Official site burnheroes.com, verified Nov 3, 2026. Linked from the developer's portfolio martintale.com (project card “Burn Heroes — 100% vibe coded roguelike”) and the entry URL in the official Vibe Jam 2026 games data; the game's page metadata names Martin Tale as author and its interface links x.com/MartinTale, the entrant's handle.
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 · Mobile support per the entrant's jam answerFree
Runs in a desktop or mobile browser. No download.
Browser (no download) · Mobile · Official link verified Nov 3, 2026.
About Burn Heroes
An idle multiplayer RPG that runs in the browser with no download. The game page describes real-time PvP, boss fights, rebirths and incremental progression, played online alongside other people; the game's leaderboards rank players by level, rebirths and PvP kills. It began as an entry for the Cursor Vibe Jam 2026, where the entrant pitched it as a multiplayer “bullet heaven” game and said it was going for Vampire Survivors vibes but did not get that far; the game's page now presents it as an idle multiplayer RPG, wording that the game's public Vibe Log dates to 30 Apr 2026, the day before the jam deadline. The jam's rules required at least 90% of each game's code to be written by AI; the official submission lists Cursor as the tool, the developer's portfolio calls the game “100% vibe coded”, and the game itself publishes a Vibe Log of the prompts used to build it. It finished 125th of 945 entries. Free on its own domain, on desktop and mobile browsers.
How it was built
Partially verifiedIn the official Vibe Jam 2026 submission the entrant lists Cursor as the tool and answers Yes to the AI-written field. The developer's portfolio describes the game as “100% vibe coded” without naming a tool. The game's built-in Vibe Log (burnheroes.com/vibeLog) lists 110 prompt sessions from 11 Apr to 2 May 2026, with the developer's prompts and answers to clarifying questions, but names no tool or model; some prompts refer to a CLAUDE.md project file. The submission covers the jam version only.
- OfficialJam rule 3: at least 90% of the code has to be written by AI. — Vibe Jam (Pieter Levels)
- DeveloperPortfolio project card: “Burn Heroes — 100% vibe coded roguelike”. — Martin Tale
- DeveloperIn-game “Vibe Log” of the prompts used to build the game: 110 sessions from 11 Apr to 2 May 2026. — Martin Tale
Built for the Cursor Vibe Jam 2026 on Three.js, with Cursor named as the tool. The client is a React app that renders the game world with Three.js and talks to the game's own server over Socket.IO for player stats, PvP hits and leaderboards. Per the game's Vibe Log, the project began on 11 Apr 2026 with Phaser 4 and Socket.IO and was then moved to Three.js; v1.0.0 is dated 30 Apr 2026 and the last logged session 2 May 2026.
- Engine / framework
- Three.js
- Languages
- JavaScript
- Team size
- Not disclosed
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“Burn Heroes — 100% vibe coded roguelike”Verification notes: Tool (Cursor), engine, genre, pitch, inspiration and the multiplayer (Yes), mobile (Yes) and portal (Yes) flags from the entrant's answers in the official Vibe Jam 2026 games data (submitted 25 Apr 2026, 14:46 UTC; final rank 125 of 945 entries, no award), re-read on 4 Nov 2026; rule 3 on the jam page requires at least 90% AI-written code. The “100% vibe coded” wording is from the project card on martintale.com, which links the game; the card calls it a roguelike, while the live game page calls it an idle multiplayer RPG. The current features (real-time PvP, boss fights, rebirths, incremental progression) are from the game page's description and its script (leaderboards by level, rebirths and PvP kills); the game was not played. The game's Vibe Log (read on 4 Nov 2026) has 110 sessions from 11 Apr to 2 May 2026: v1.0.0 is dated 30 Apr 2026, the idle/multiplayer RPG wording of the page's meta tags was added the same day, and the only session after the 1 May 2026 13:37 UTC deadline (2 May) added a graphics settings panel. Vampire Survivors is named by the entrant as the intended feel only; no Vampire Survivors names or assets were found, so no IP notice is attached. The X profile @MartinTale (display name “Martin Tale 🐌”) could only be read intermittently; nothing from it is recorded. Team size and location are not stated. The game's script talks to its own server (server.burnheroes.com), Google Analytics, the developer's Plausible analytics and the jam widget; no calls to AI services were found. The jam page's widget counters showed 1,400 plays and 1,366 portal transfers for burnheroes.com on 4 Nov 2026 (observed; sessions, not players or downloads, so not recorded as metrics). The release date is not stated; the jam submission is dated 25 Apr 2026.
Development history
Entered in the Cursor Vibe Jam 2026 (submission date in the official games data, 14:46 UTC); the jam required at least 90% AI-written code. Final rank 125 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)
Free in the browser with no download. The game links a Ko-fi page for tips.
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 |
| Burn Heroes - Idle Multiplayer RPG (game page and script) Martin Tale | Official site | Not confirmed | Nov 3, 2026 |
| Martin Tale - Maker (portfolio) Martin Tale | Official site | Not confirmed | Nov 3, 2026 |
| Burn Heroes — Vibe Log (prompt sessions used to build the game) Martin Tale | Official site | Not confirmed | Nov 3, 2026 |
| Official game page (language check) Martin Tale | Official site | Not confirmed | Nov 3, 2026 |
