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Cindervale

2026 · Mr. Coconut

Made with Claude CodeDeveloper Reporteditch.io ↗Actionitch.ioPartially verified

An underground metroidvania bullet hell with a grapple hook and online multiplayer.

Where to play

Official site mistercoconut.itch.io, verified Nov 3, 2026. The developer's own itch.io page (Mr. Coconut), linked from its official AI Browser Game Jam 5 submission page.

Where to play

Every platform this game is on. Links are checked against official sources; we never host or mirror games.

  • itch.ioReleasedFree

    Plays in the browser on itch.io. No download.

    Browser (no download) · Official link verified Nov 3, 2026.

    Play free — itch.io

About Cindervale

A metroidvania with bullet-hell combat, set underground, in which you get around with a grapple hook. The developer says it has full online multiplayer and takes about three hours to complete. Mr. Coconut says the game was made entirely by Claude Code, using Opus 5.5, with some of the developer's own help. It was made in Godot for AI Browser Game Jam 5 and is free to play in the browser on itch.io.

metroidvaniabullet-hellgrapple-hookundergroundonline

How it was built

Partially verified

The itch.io page says the game was made entirely by Claude Code with some of the developer's assistance; the jam submission's AI Tools Used answer names “Claude Code using Opus 5.5!”. Neither says what the developer's own part was. The itch.io AI disclosure also ticks Graphics, Sounds and Text, but the page does not say how the art, sound or text were made.

Developer ReportedCindervale by Mr. Coconut
Supporting evidence
Development approach

Made in Godot for AI Browser Game Jam 5 (theme: Torch), entirely by Claude Code (Opus 5.5) with some help from the developer, per the itch.io page and jam submission. The web build's scripts are GDScript, and include a networking script for the online multiplayer (observed).

Engine / framework
Godot
Languages
GDScript
Team size
Not disclosed
Initial build time
Not disclosed
Development time
Not disclosed
Development cost
Not disclosed
AI-written code
Not disclosed
“made entirely by Claude Code with some of my assistance!”
— Mr. Coconut, Cindervale by Mr. Coconut

Verification notes: AI use from the itch.io page and the AI Tools Used answer on the official AI Browser Game Jam 5 submission page, both re-read on 5 Nov 2026. “Made entirely by Claude Code with some of my assistance” gives no percentage, so no AI code share is recorded. The online multiplayer and the three-hour length are the developer's description and were not tested; the Godot build contains a networking script. Godot from the itch.io “Made with” field; GDScript observed in the build. Published 25 Oct 2026 (23:20 UTC). The developer also entered ECHOFALL and Wicklight in the jam; they are not recorded here. The page has a single short paragraph, so the game's description is limited to it; team size and location are not stated. The Godot build was checked for calls to AI services and none were found. Jam voting was still open on 5 Nov 2026 (it closes on 7 Nov), so no placement is recorded; the submission page showed 5 jam ratings (jam votes, not recorded as a metric). itch.io shows no public rating. The game was not played.

Development history

  1. Published on itch.io (23:20 UTC) and submitted to AI Browser Game Jam 5 (theme: Torch), 5 days and 3 hours before the deadline.

  2. AI Browser Game Jam 5 submissions close; voting was still in progress on 5 Nov 2026.

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.

itch.io

ReleasedFreeStore page

Free in the browser (HTML5).

Downloads
Not disclosed

Not publicly available: itch.io rating, Gross revenue.

Reviews & rankings

Editorial review

Not yet reviewed by our editors.

Ranking positions

Not currently ranked.

Sources

SourceTypePublishedAccessed
Cindervale by Mr. Coconut
itch.io
Store pageOct 25, 2026Nov 3, 2026
Rate Cindervale for AI Browser Game Jam 5
itch.io (AI Browser Game Jam 5, hosted by Focaccai)
Official siteNot confirmedNov 3, 2026
AI Browser Game Jam 5
itch.io (Focaccai)
Official siteNot confirmedNov 3, 2026
Official game page (language check)
Mr. Coconut
Official siteNot confirmedNov 3, 2026
Verification: Partially verifiedLast verified: Nov 5, 2026OfficialDeveloperThird-PartyObservedUnverified
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