Since the game is no longer sold on official digital storefronts like Steam or GOG , it is widely considered "abandonware". You can find it on several community preservation sites:
To get the game running smoothly on modern hardware, you will likely need a few tweaks: Psi-Ops: The Mindgate Conspiracy (HD PC) Part 1 Psi-Ops The Mindgate Conspiracy Download PC Game
Features pre-installed versions that only require you to extract the ZIP and run the .exe . Since the game is no longer sold on
Offers a fixed freeware version that originally required an internet connection but has been patched to play offline. Hosts original disc images for archival purposes
Hosts original disc images for archival purposes. Essential Fixes for Modern PC (Windows 10/11)
If you are looking to revisit the psychic warfare of on PC in 2026, here is the current breakdown for finding and running this 2004 classic. Where to Download