For the best experience on modern computers (Windows 10/11), it is recommended to use versions that have been patched for compatibility:

: Hosts various versions of the game, including the full MS-DOS version and disc images (ISO) for preservation.

is not officially available as a modern "free-to-play" title, but you can find it through digital preservation sites or purchase it cheaply on modern storefronts. Legal & Digital Stores

: If you just want to try a "piece" of the game, a playable demo is available on the Internet Archive. Game Overview Spycraft: The Great Game - GOG.com