🎲Master System games online
Play 13 classic Master System games online for free, right in your browser — no downloads, no installs. The Master System emulator runs on desktop, mobile and tablet: click any game and start instantly.
Alex Kidd in Miracle World
Master System · 1986
Sonic the Hedgehog 2
Master System · 1992
Wonder Boy
Master System · 1987
Phantasy Star
Master System · 1988
Shinobi
Master System · 1987
Psycho Fox
Master System · 1989
Sonic Chaos
Master System · 1993
Castle of Illusion
Master System · 1990
Golden Axe
Master System · 1989
Out Run
Master System · 1987
R-Type
Master System · 1988
Sonic the Hedgehog
Master System · 1991
Wonder Boy III - The Dragon's Trap
Master System · 1989
About Master System emulation
The Sega Master System was the NES's 8-bit rival, hugely popular in Europe and Brazil, with early Sonic, Wonder Boy and Phantasy Star titles.
On RetroHub you play Master System instantly — no ROM downloads, no emulator installs. Everything runs in the browser with keyboard and gamepad support, save states and fullscreen.
Is it free to play Master System games online?
Yes. Every Master System game on RetroHub is free and plays right in your browser.
Do I need to install anything or download ROMs?
No. Everything runs in the browser — no emulators to install, nothing to download.
Does it work on mobile and tablet?
Yes, with on-screen touch controls, plus keyboard and gamepad on desktop.