OpenBlox is a game engine providing a Lua API to enable developers to create games easily and with few restrictions.The servers providing the infrastructure and services used by the OpenBlox project, collectively called OBNet, are also used to host a number of other projects. OpenBlox lets you make games with a built-in physics engine, Lego-like building blocks, and a scripting language called Lua. Once you’ve made a game with OpenBlox, you can pack it into a single file with one mouse click, and share your game with anyone you want.
It is important to note that the “Open” in “OpenBlox” does not refer to “open source”, but rather to the potential of the OpenBlox engine. The goal is to provide a free (libre) software game engine, not to promote “open source” software. The OpenBlox game engine itself is under the GNU Lesser General Public License, version 3 or later. The reference client and server implementations, as well as the studio software, are licensed under the GNU General Public License, version 3 or later.