Portal 2/pl

Portal 2 to sequel gry Portal, wyprodukowany przez Valve. Zawiera kampanię dla jednego gracza, dziejącą się po wydarzeniach z pierwszej gry, a także nowy tryb gry kooperacyjnej, zawierający dodatkowe pomieszczenia testowe zaprojektowane specjalnie dla dwóch graczy. Portal 2 został wydany 19 kwietnia 2011 na platformie Steam. Wersja pudełkowa w Ameryce Północnej ukazała się tego samego dnia, a w Europie i Australii 21 kwietnia 2011.

Sixense
The Portal 2 Sixense MotionPack DLC  is exclusive Portal 2 downloadable content available to owners of the Razer Hydra (Purchasable on the Steam store). The DLC includes specific levels and mechanics that make use of the Razer Hydra's motion detection capabilities.

Summer DLC (Unreleased)
Portal 2 is set to receive a free DLC in Summer 2011. The DLC is expected to introduce Challenge Mode for Singleplayer and Co-op, Leaderboards , and a whole new Co-op course.

Portal 2 in Schools
During Gabe Newell's keynote at the Games For Change festival, Gabe mentioned that Valve were beginning working with schools to build curricula around Portal 2; looking into, as Stephen Totilo of Kotaku summarised, "how to teach attraction, repulsion... they need to be clear on what their metrics are... what the outcome is, what they're optimizing for".

Trivia

 * Shooting a portal to the moon as the ending was originally an easter egg "3 minutes into the game", which caused the player to be sucked out of the test chamber and die - and was an alternate game ending.