Half-Life 2: Sandbox Andrew McWatters Matthias Moninger Jacob Robbins Henry Tran Half-Life 2: Sandbox is an open-source sandbox modification of the Source Engine which provides Lua as a scripting platform for developers to quickly prototype game ideas. The minimalistic game includes a sandbox gamemode for playing with the many aspects of the Source Engine. Proudly powered by Adnan's Rotational Gravity Gun Adnan Zafar adnan.f.zafar AT gmail DOT com http://skew.telefragged.com/mods/hl2/ARGG/ ARGG is used by Half-Life 2: Sandbox to implement rotational functionality for the physics manipulator. Open Steamworks Open Steamworks is used in Half-Life 2: Sandbox for mounting additional game content through Steam's abstraction layer rather than the game engine's filesystem class, which prevents non-fatal engine errors.
Planimeter/hl2sb
Half-Life 2: Sandbox - A free and open-source sandbox Source engine modification.
Lua