Play The Fourth Protocol Online
You start in a dim safehouse decoding messages, then sweat through tense choices—bribe a guard or sneak through the woods, knowing one slip means a KGB bullet. That old-school spy tension still hits.

Game Overview
Man, The Fourth Protocol takes me back—this was one of those MS-DOS games that made you feel like an actual Cold War spy, not just some pixel guy running around. You start off in some dimly lit safehouse, flipping through coded messages and trying to figure out which informant might actually not get you killed. The tension’s real—one wrong move and suddenly you’re staring down a KGB agent in a train station with no backup.
It’s got that old-school mix of stealth and strategy where you actually have to think instead of just mashing keys. The graphics are pure ‘80s, obviously, but there’s something about the way the game forces you to plan every step—like, do you bribe the border guard or sneak through the woods?—that still holds up. If you miss games that treated you like an adult instead of holding your hand, this one’s worth dusting off.
Just remember: save often. Trust me on that.
Each game uses different controls, most DOS games use the keyboard arrows. Some will use the mouse , "Alt" ,"Enter" and "Space bar".

Download The Fourth Protocol ROM
You can download this ROM to play The Fourth Protocol offline using an MS-DOS emulator (Top Emulators).
*This ROM is provided for backup and educational purposes only.