(SOLVED) Hey guys, I'm having trouble installing Crysis on my computer. I downloaded all of the game's installation files, but when I start the "Setup_crysis_2..0.07.exe," the window that pops up tells me that installer files are missing and when I go and click on them it tells me that the file cannot be found. Please help!

From my library, I'm seeing that you need three installation files:

Crysis® (Part 1 of 3), 1.1.1.6156 (gog-7), 26 MB
Crysis® (Part 2 of 3), 1.1.1.6156 (gog-7), 3.9 GB
Crysis® (Part 3 of 3), 1.1.1.6156 (gog-7), 2.9 GB

Do you have all of these? And what download method did you use: browser, Downloader, Galaxy?

Yeah, it turns out that all i needed to do was have GOG galaxy install the game. Thanks for responding!

Using Galaxy is one way. If it works for you, all is fine.