He-Man: Defender of Grayskull He-Man: Defender of Grayskull He-Man: Defender of Grayskull is a 2005 multi-platform action-adventure game follow up to the 2003 Game Boy Advance game "". The game was designed by Savage Entertainment. Despite being completed and even featuring on the Xbox 360 Backwards Compatibility list, the game was never released on Xbox. The game's story opens with the kingdom of Eternia in turmoil. He-Man's nemesis Skeletor has surrounded Castle Grayskull with hostile forces yet again, but this time does it when Prince Adam happened to be away in Snake Mountain to run some errands. Without He-Man around to defend the castle,
He-Man be a descendant of King Grayskull (a powerful barbarian and a hero from Eternia's ancient past), who sacrificed his life in order to save Eternia from the Evil Horde and originally wielded the Sword of Power. He was the original owner of Castle Grayskull; his sword was concealed in the castle for centuries before being given to Prince Adam, who inherited his ancestor's own power channeled through the sword (thus giving added meaning to the phrase "By the power of Grayskull..."). This action-figure line combined elements from the He-Man universe into a cohesive storyline with biographies on the figures' packaging.