With Crytek suing CIG for failing to live up to its end when using CryENGINE to power Star Citizen. The issue boils down to one license being supplied but then it being used across multiple titles - Star Citizen and Squadron 42. It goes further than that with mention of trademarks and other infringements. In its defense CIG notes that it stopped using CryENGINE a while ago.
"We are aware of the Crytek complaint having been filed in the US District Court. CIG hasn’t used the CryEngine for quite some time since we switched to Amazon’s Lumberyard. This is a meritless lawsuit that we will defend vigorously against, including recovering from Crytek any costs incurred in this matter."
So goes the statement from CIG, who has indeed switched engines. Anyway, you can check out the full legal filing here
. Star Citizen is still in development. Alongside Squadron 42.