2D Point-and-click adventure game engine based on SDL
GPL-3.0 License
A basic 2D game engine that builded on SDL2.
Chrysalis - Source to a 2D Platformer from 1994
An open source version of a game engine developed by Croteam for the classic Serious Sam games.
A modern re-implementation of the classic DOS game Duke Nukem II
Classic RPG Game written in C++ using GameKit
[ARCHIVED] Modern reimplementation of the Diablo 1 game engine
A lightweight game engine written in modern C++
Dagor Engine and Tools source code from Gaijin Games KFT