The game is unquestionably massive and gave fans of the series a considerable farewell gift prior to Konami and Kojima parting ways. Outside of the game's main campaign, players can build their off-shore private military base and participate in the game's online multiplayer element (and work towards global nuclear disarmament together). Each story mission has dozens of potential solutions for completing them, some offering unique rewards. The open-world, action-adventure stealth game has plenty of stories, side-missions, and secrets to keep players hooked for hundreds of hours. Metal Gear Solid 5: The Phantom Painis Konami's final project with series creator Hideo Kojima.