Fenris Creations, the company behind EVE Online, has made its Carbon game engine open source, allowing anyone to use and contribute to the code. The decision was made to build trust with the community and to allow for more eyes on the code, which can lead to improvements and growth. The engine is available on GitHub under the MIT License, with some modules under Apache License 2.0 and Python Software Foundation License. The company hopes that the community will contribute to the engine and create new experiences around the EVE universe.