

The original version of Crysis is available right now on GOG and the EA store. PC isn’t a single vendor ecosystem where the only store also owns the hardware to play it.
We also don’t know who decided to pull it. I’d still wager it is unlikely Valve made a unilateral choice or pressured the game off the platform. Look at EA for answers.
I buy and play a bunch of old games from an EBay seller who sends both the original disc and a disc with a copy of the game that loads dosbox stuff or whatever else to make it work easily on a modern system without fiddling around. It’s pretty great.
I have a bunch of strategy and sim games.