Epic  made Unreal Engine 4 available for anyone to download and use, for free. The download features the the full set of tool and includes 100% of the C++ source code. Future updates will also be added at no extra cost.

The Unreal Engine download gives developers access to development forums, wiki, and a marketplace where they can purchase, or sell their work, for other developers to use. In addition, video tutorials, documentation, and game templates will also come with the download.

“The past year has been a whirlwind for everyone at Epic Games. Our community has grown tremendously. The quality and variety of creative work being done has been breathtaking. When we asked people to submit their projects to be shown this year at GDC, we had the challenge of picking just 8 from over 100 finalists that were all good enough to show,” said Epic Games founder and CEO Tim Sweeney.

“The state of Unreal is strong, and we’ve realized that as we take away barriers, more people are able to fulfil their creative visions and shape the future of the medium we love. That’s why we’re taking away the last barrier to entry, and going free.”

Epic will be issuing pro-rated refunds to current subscribers for the payment of their most recent month. A $30 Unreal Engine Marketplace credit will also be sent to anyone who has ever paid for a subscription.

Here’s Sweeney announcing the new scheme.

Unreal Engine4 now free for download