Developing or playing games using —software that respects user freedom by being open-source and freely redistributable—is supported by a massive ecosystem of engines, tools, and assets. Unlike "freeware," which is simply free of cost, free software (often licensed under GPL or MIT ) ensures the source code remains accessible for the community to modify and improve. Essential Free Software Engines
Choosing the right engine depends on your project's complexity and your programming experience. The complete guide to publishing free software video games free software game