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A real-time multiplayer card game built with Go and Htmx

A real-time multiplayer card game built with Go and Htmx

by mitchm·Feb 25, 2026·1 point·0 comments
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AI Analysis

●MidShip ItEye Candy

HTMX + Go + SSE for Uno is a technically sound demo, but the game itself isn't novel.

Strengths
  • •SSE + granular OOB swaps is a clean real-time pattern for server-sent updates
  • •No JS frameworks required—proves HTMX can handle real-time multiplayer mechanics
  • •Ephemeral gameplay (no auth, no persistence) reduces scope and complexity smartly
Weaknesses
  • •Currently down (Cloudflare 520 error)—can't verify actual gameplay or UX polish
  • •Uno as a game is solved; value is purely in the technical stack, not the product
  • •No differentiation over existing Uno clones or other HTMX real-time demos
Category
Gaming
Target Audience

Web developers interested in Go + HTMX architecture; casual Uno players

Similar To

Boardgame.io · Netcode.io

Post Description

This started out as an exercise in what’s possible building web apps without JS UI libraries.

It’s a real-time multiplayer version of the classic card game Uno. Heavy use of the SSE extension for HTMX, which powers realtime game updates, chat, and the live replay feature for spectators. Lots of granular OOB swaps.

Figured it would be a better demonstration than a todo list. Happy to answer any question about how it’s developed or take any feedback to make it better.

This is purely an experiment. Free, no ads, no accounts needed. Gameplay is ephemeral.

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