Play Master System Games Online
6 games playable in your browser · Also known as SMS, Mark III
The Master System was Sega’s 8-bit contender, released in 1985 in Japan as the Mark III and rebuilt for the West a year later. It had better raw specifications than the NES but lost North America decisively — while dominating Brazil and doing well across Europe.
That regional split shaped the library. Alongside Sega arcade conversions sit Phantasy Star, Wonder Boy III: The Dragon’s Trap and a run of European-developed titles that never appeared on Nintendo hardware at all.
Pro Wrestling
The Lucky Dime Caper Starring Donald Duck
Rambo III
Rambo - First Blood Part II
Michael Jackson's Moonwalker
Sonic The Hedgehog
Most popular Master System games
Frequently asked questions
Why do some Master System games look different from their NES versions?
The two systems had different palettes and sprite limits, so multi-platform titles were rebuilt rather than ported. Master System versions usually have more on-screen colour.
What is the Mark III?
It is the Japanese version of the same console. Mark III releases are listed under Master System here.