Another major engine fork is for Star Citizen &#x2F; Squadron 42.<p>They&#x27;ve hired several ex-Crytek engineers at the Foundry 42 office in Frankfurt, and among other changes have modified the engine to support a 64 bit data in coordinate system and rendering, multithreaded physics, and independent physics grids for inside the larger ships while they&#x27;re moving around. Probably other things, but those are the main ones.