The Invisible Tutorial Hidden In Every Portal Chamber

How much longer do you think I can milk this whole tutorial thing? 00:00 Intro 00:10 Game Design For Grandma 00:59 How Valve Teaches Players About Boxes 02:02 Teaching Players The Basics 03:33 How Valve Tests Basic Learnings 05:15 Why Layering Information Is So Important 06:06 GLaDOS As A Testing Element 07:20 The Biggest Challenge Valve Faced During Development 09:30 Why Layering Knowledge Isn't Good Enough (The 3 Design Principles) 11:35 Teaching Turrets To The Player 12:59 The Final Test 13:48 Changing Design Language