Lemmings in HTML in Canvas

Name: Lemmings in HTML in Canvas
Availability: InStock
Author: VorticonCmdr

by VorticonCmdr·Jul 26, 2026·1 point·2 comments

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AI Analysis

●●●BangerWizardryBig BrainNiche Gem

DOM entities rendered inside canvas with native hit-testing using experimental Chrome API.

Strengths

•HTML-in-Canvas API allows real div elements as canvas children with native accessibility
•Reconstructed undocumented EGA, CGA, Tandy graphics modes and 2-player levels
•Ghidra and DOSBox MCP integration enabled discovering undocumented audio hardware behavior

Weaknesses

•Requires Chrome Canary with non-standard flags, excluding Safari and Firefox users entirely
•Heavy reliance on Claude Code makes it unclear what portions are author vs agent work

Post Description

For fun I decided I wanted to reimplement Lemmings using HTML-in-cavas and a DOM-based Entity-Component-System. I made heavy use of Claude Code (using only Sonnet 5 High) and I used everything already published on this topic. I used already existing HTML ports (like DHTML Lemmings, LemmingsJS and Lemmings.ts) to kickstart development.

Even though I was able to add some new stuff like EGA, CGA and Tandy as well as Adlib, Tandy and PC Speaker that wasn't documented (or I didn't find it). I, or rather Sonnet, was able to do so because I hooked it up to a Ghidra MCP and a DOSBox MCP.

At some point feature creep set in so I am guessing there are still a few things not working as intended. I'd love to hear all about it.