[Psyladine]

I asked Spector about his 'immersive simulations' comment some years back:

"I just prefer games that are less puzzle oriented or "single-solution" oriented and games that offer deeper simulations. Simulations allow players to explore not just a space but a "possibility space." They can make their own fun... tell their own stories... solve problems the way they want and see the consequences of their choices."

Maybe precursors to todays sandbox game environments then.