Just posting again from mildly interesting because someone said it would fit here anyway I just realised my ps3 copy of portal 2 lets you play on steam for free. : r/Portal
Portal 2 - Wikipedia
Portal 2 In Motion on PSN Tuesday, Full Game Getting PS Move Support – PlayStation.Blog
駿河屋 - 【買取】PORTAL2(状態:ゲームディスクのみ)(プレイステーション3)
Valve Reveals Portal 2 for PlayStation 3: Steam Details – PlayStation.Blog
Portal 2 • PS3 – Mikes Game Shop
Game | Sony Playstation PS3 | Portal 2
Amazon.com: Portal 2 Ps4
Amazon.com: Portal 2 - Playstation 3 (Renewed) : Video Games