I see three types of “game” out there.
- Toys – these are games where there is seemingly no point. The complexity can vary but ultimately these tend to be open-ended and entertaining. I would classify The Sims and other simulations in here.
- Puzzles – these are games where the outcome is usually the defeat of a mental challenge. I would classify Angry Birds, Candy Crush and Myst in here.
- Games – these are games where there is often challenge from another player, human or otherwise. Strategy games, first person shooters, racing games.