Crysis set the bar for FPS sandbox shooters, but the decision to go multi-platform set the bar so low, they became jack of all trades and master of none. Crysis 2/3 sold mostly on the hype from the original PC title rather than the merits of the sequels, which were mediocre linear shooters.
It's sad to see them in trouble, but hardly surprising when they opted to jump on the console bandwagon and make 'em cheap and sell 'em by the ton. Which in a crowded marketplace is not easy, unless you've got a unique property, which Crysis 2/3 were not.
Epic are giving away the Unreal SDK. You cannot compete with that and stay in business, unless you have another revenue stream, but by sacrificing the PC market for the consoles, they pissed in that particular well. They then followed that bad decision with the next one, by developing an XBOX One exclusive "Ryse" which was linear and repetitive.
They took all their eggs (and expertise) out of the PC basket and put everything in one console basket and now they are going under.
Might I suggest making a moddable sandbox PC game? Before you go bust...
There are 10 types of people in this world. Those who understand binary and those who don't.