Simply download and install through the respective client. These versions often come with basic compatibility fixes pre-applied. Physical Disc: Insert the disc and run Setup.exe .
Even with official patches, the game often suffers from "broken" AI (enemies seeing through walls) and modern hardware glitches. far-cry-1-installation-tutorial
Enable "High Dynamic Range" (HDR) if you are on version 1.4 for significantly better lighting effects. Simply download and install through the respective client
If you are using the original retail disc version, you update the game to the final official version (v1.4) to fix major bugs and enable HDR support. Install the Far Cry Cumulative Patch (1.1 to 1.4) . far-cry-1-installation-tutorial