It seems to me a key aspect of the "engine switch" is the licensing agreement signed between Amazon and Crytek. We can't see that document, but considering it was a $50-$70M deal, one can reasonably assume Crytek granted Amazon a considerable number of rights, and few restrictions. Amazon would require such rights to be deemed a standalone Game Engine, completely unfettered by Crytek/Cryengine claims. I'd be surprised if the Amazon lawyers haven't locked the agreement down tight so that Crytek has no right to claim that a lumberyard customer is still using Crytek's engine/IP/software/copyright. Then again, the CIG - Crytek GLA is an absolute shambles, so who knows what the lawyers have let through on the Amazon - Crytek agreement.
In short, any speculation about the "engine switch" in the current litigation is just that, speculation. But if anyone has a copy of the 2015 Amazon - Crytek licensing agreement, do tell.
In short, any speculation about the "engine switch" in the current litigation is just that, speculation. But if anyone has a copy of the 2015 Amazon - Crytek licensing agreement, do tell.