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wglt

A free roguelike game — play it in your browser, no install. WebGL Terminal. WGLT is a JavaScript/TypeScript library for creating ASCII games in the browser. WGLT is absurdly overoptimized for performance, using WebGL for minimal CPU. WGLT is modelled after libtcod and rot.js. WGLT is a minimalist library. It is intended to be small, lightweight, and fast…

by @codyebberson · codyebberson/wglt on GitHubLANG TypeScript★ 68HOSTED ON WGLT.JS.ORGUPDATED 23 Jul 2026

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From the README

WGLT is a JavaScript/TypeScript library for creating ASCII games in the browser.

WGLT is absurdly overoptimized for performance, using WebGL for minimal CPU.

WGLT is modelled after libtcod and rot.js.

WGLT is a minimalist library. It is intended to be small, lightweight, and fast. It serves the very narrow use case of minimalist ASCII or ANSI games in the web browser.

By default, WGLT uses the original IBM CGA Character set, thick variant, dumped from addresses 0x1800-0x1fff the 5788005 IBM Character Generator ROM.

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