overgeeked
Open-World Sandbox
Ah, yes. You can sell it, but you have to also release it for free under the same CC-BY-SA license. At least those parts based on the CC-BY-SA material.It reads like CC-BY-SA allows your work to be commercial, but it has to be CC-BY-SA too:
Deed - Attribution-ShareAlike 4.0 International - Creative Commons
creativecommons.org