Gladiator, known in Japan as Ougon no Shiro (黄金の城, lit. "Golden Castle"), is an arcade video game developed by Allumer and published in 1986 by Taito. It was followed by a sequel titled Blandia. Home ports of Gladiator were released for the ZX Spectrum, Amstrad CPC and Commodore 64 as Great Gurianos; the Spectrum version was intentionally made unwinnable.