Cross-platform game engine Defold has announced that the source code is now available under a reasonably generous license, along with the formation of a Defold Foundation.
It's interesting as the owner was King, a popular mobile game developer (Candy Crush amongst others) who also acquired the Defold engine from others before them. It was already free to use and cross-platform but the next step was announced today.
"We are immensely proud to be able to open source Defold and we’re eager to start the journey as an open source game engine together with our great community of game developers building games using Defold. We would also wish to thank King for believing in our open source vision and entrusting Defold to the Defold Foundation." says Björn Ritzl, Product Owner, the Defold Foundation.
"We’re hugely impressed by the Defold team, and look forward to seeing many great gaming experiences come to life. We’ve seen millions of players already playing the King games run on the Defold engine and we’re excited to see the community come together even more, with the support of the Defold Foundation." says Tjodolf Sommestad, Chief Development Officer, King.
Note: their license is derived from the official Apache 2.0 License. The Apache 2.0 License itself is approved by the Open Source Initiative (OSI), although I'm unsure on how any of their tweaks to it would affect the official use of the "Open Source" term. Likely not properly correct to actually call it open source but it's close. This is likely another "Source Available" type of situation. It's still fantastic news regardless.
This new Defold development team and Foundation sounds good. Developers from King will be working on Defold full-time, with the Foundation board headed by Sara Cederberg from King and other industry people like Elin Eriksson (Women in Tech Sweden).
Excellent news really. I'm looking forward to seeing Defold continue to be a good free and open game engine. Not only does it support cross-platform building to Linux but the editor is also available on Linux to make games with. It's also getting Vulkan API support this year!
As an example of a recent (and awesome) game made with Defold, check out Fates of Ort.
Update: the Defold team have since quite quickly acted on feedback, and no longer say it's open source but that it's "Free & Open" instead.