SirKnightTG

ags

AGS editor and engine source code

BansheeEngine

brakeza3d

Brakeza3D is an open source 3D engine for lovers of old school technology.

circle_cpp_shaders

Circle C++ shaders

FITD

Free in the Dark

geometry3Sharp

C# library for 2D/3D geometric computation, mesh algorithms, and so on. Boost license.

gzdoom

GZDoom adds an OpenGL renderer to the ZDoom source port.

Janua

Open Source occlusion culling engine for 3D Scenes

JurassicParkTrespasser

A git-based fork of the Jurassic Park: Trespasser source code.

KPRTX

LLGL

Low Level Graphics Library (LLGL) is a thin abstraction layer for the modern graphics APIs OpenGL, Direct3D, Vulkan, and Metal

MonoGame

One framework for creating powerful cross-platform games.

particle-system-api

Automatically exported from code.google.com/p/particle-system-api

Polycode

Polycode is a cross-platform framework for creative code.

Rayito

Simple ray tracing tutorials

renderer

My software-only 3D renderer and raytracer

ShaderGen

Proof-of-concept library for generating HLSL, GLSL, and Metal shader code from C#,

skifree.js

A JavaScript port of the classic PC Game, Skifree.

sledge

An open source alternative to Valve's Hammer Editor for the Goldsource engine. (No longer in development)

sm64super

Fork of https://github.com/sm64pc/sm64ex with Vulkan support.

stride

Stride Game Engine

TrenchBroom

Cross-Platform Level Editor

veldrid-raytracer

A C# ray tracer, capable of running on both the CPU and GPU.

vkDOOM3

Vulkan DOOM 3 port based on DOOM 3 BFG Edition

vkQuake2

id Software's Quake 2 v3.21 with mission packs and Vulkan support (Windows, Linux, MacOS)

Wintermute-Engine

Import from https://bitbucket.org/MnemonicWME/wme1

xash3d-fwgs

Xash3D FWGS engine. Rebooted fork since big Xash3D 0.99(1.0 is not yet) update.