From Flagship Studios, a group of ex-Blizzard developers, Hellgate: London is a post-apocalyptic hack and slash that was released in 2007. As demons begin flooding into the real world humanity wasn't prepared for the fight and quickly fell, now 18 years later they're beginning the process of The Burn to turn our world into theirs. For those that still are alive, and know how to fight back against the demons it's time to drive them back.
The games single player story takes place over five acts and along the way players will encounter roguelike loot drops for weapons and equipment leveling up their character as they progress. At any time players can restart acts and play them on higher difficulties with the same characters.
After Flagship Studios went under the game was purchased by HanbitSoft who relaunched the game as Hellgate London: Resurrection in South Korea, and then added Hellgate: Tokyo to the game.