The Fourth Protocol
– ZX Spectrum
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ControlsArrows move · Z X A S buttons · Enter Start · Shift Select · or plug in a gamepadZX Spectrum
About the platform 1982–1992
Sinclair's ZX Spectrum was a cheap British 8-bit computer that brought gaming into millions of homes. It is known for its distinctive colour-clash graphics and a huge games library.
Here on oldgame.cz you play it right in your browser via the EmulatorJS emulator — no install, no plugins, on desktop and mobile.
Recommended controls
These games are controlled with the keyboard (see the controls table next to the game). A USB joystick/gamepad can make some titles more comfortable, but is not required.




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