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A 2011 first-person action/puzzle video game, developed by Valve Corporation. It is the sequel to Portal.
A first-person action/puzzle video game, developed by Valve Corporation. It is the sequel to Portal.
Portal 2 is aA first-person action/puzzle video game, developed by Valve Corporation. It is the sequel to Portal.
Portal 2 is a first-person action/puzzle video game, developed by Valve Corporation. It is the sequel to Portal.
