Is there any places where you could get Crysis version 1.1.5879? By the looks of it you can only get 1.6156 on steam. Is there not a way to just get a copy of all the files instead of having to buy the version at origin?

After replacing these files with my GOG install it says:

No disc inserted. Please insert the original "Crysis(R)" CD/DVD.

Is there a way around this?

good ol' crack probably

I just replaced all my steam files into the old version and those it asked for if i should replace them because of same name i just said no and it worked.

I copied my folder of crysis (steam) to my desktop, then I copied all the crysis (downloaded) files to the folder that I put on my desktop. Where it asked me to replace I selected: yes, where it said it could not find something I selected: skip.

Hi,

I tryed both of ur method for downgrading. They doesnt work at all. I have the insert DVD error . I use GOG version. I dont know what i did wrong tho.

you probably just need to crack it. replace the existing .exe file with a cracked one. you can probably find it on torrent.

Here's a better version of the downgrade patch - https://www.dropbox.com/s/vot3529dw8l9qmi/Crysis%201.1%20Downgrade.zip?dl=0

1. Paste the files in your steam/gog copy of the game
2. Launch game from the exe in the Bin32 folder
3. Go to the main menu and ensure the version number is 1.1.1.5879
4. Enjoy circlejumping