Fellow Oak DICOM for .NET, .NET Core, Universal Windows, Android, iOS, Mono and Unity

Websockets for Laravel. Done right.

A Xamarin Forms library for implementing Material Design

MTA SA map, script, shader, etc editor.

Lightweight, fast, Java-centric Lua interpreter written for JME and JSE, with string, table, package, math, io, os, debug, coroutine & luajava libraries, JSR-223 bindings, all metatags, weak tables…

Open Source PHP Framework (originally from EllisLab)

Materialize, a CSS Framework based on Material Design

Grand Theft International RPG - Official Open Source

Lua Decompiler for Lua version 5.1

The lightweight and realistic game mode for Multi Theft Auto with features such as Civilians, Law and criminals, Gang wars and much more