[W]hat lessons can other developers and publishers learn from the way Valve works? We’ve pinpointed four key aspects from the handbook’s text that others can emulate.

  1. Have a sense of humor […]

  2. Care for your employee’s families […]

  3. Treat your employees like adults […]

  4. Mitigate the fear of failure […]

[related: Valve, a Video Game Maker With Few Rules (Game Maker Without a Rule Book)]