Pioneer is a open source space adventure game
Endless Sky is a sandbox-style space exploration game
Sandbox video game with a powerful physics engine
Launcher for Flashpoint Archive
s&box is a modern game engine, built on Valve's Source 2
An open source re-implementation of RollerCoaster Tycoon 2
The Shiptest Codebase
Voxel game engine in C++ with OpenGL
Free APK version of Garry's Mod, the Android sandbox physics game
Voxel game-creation platform with easy modding and game creation
Multi Theft Auto is a game engine
An open source Minecraft reimplementation written from scratch
TextWorld is a sandbox learning environment for the training
P2P Remote Desktop - Portable, No Configuration or Installation Needed
A sandbox game about giving your mannequin a wedgie.
Calcu-Craft is an ascii proyect game made in Batch
Free Online MMORPG with Battlegrounds
Attention! This tiny board/shooter game just created for fun
TX Library is a tiny graphics library for Win32 written in C++.
Parabator 3 - Rush of the Wind 1.4.3 (Xtreme3D Engine) Free board game
Simple 3d Top-Down Shooter & Free 3d Board Game
Enhance your ghost hunting with a powerful, customizable mod menu.
Everything you need to build and deploy scalable realtime 3D apps
An open-source sandbox tower defense game