Open Sourcing my HTML5 Multiplayer Game Engine
DEFUNCT: HTML5 and Node.js multiplayer browser game from 2013 - tlhunter/Cobalt-Calibur-3
Open Sourcing my HTML5 Multiplayer Game Engine launched on August 16, 2012 with 87 votes, #26 of 411 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 14 years on.
In plain words
Cobalt Calibur 3 is a multiplayer browser game built with HTML5 and Node.js, originally released in 2012. The project is now defunct and no longer maintained. It was designed as a real-time multiplayer game that ran directly in web browsers, leveraging server-side Node.js technology for backend functionality. The source code is available on GitHub for reference or historical interest.
written from the facts on this page · September 2026
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I've posted this game here before, hopefully a repost is fine as the game has changed quite a bit (improved AI, improved mapeditor, much quicker gameplay, etc). Game is based on JavaScript/Canvas and WebSockets. On the browser side the map is pre-rendered (as a background image), just the mobile units/buildings and animations are dynamically rendered. The lobby server is made in node.js, but the game server is C++ for performance reasons (mainly the pathfinding). I found the C++ WebSocket libraries out there to be too difficult to use so I made my own based on the rfc. Overall I…
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