Co jest grą, ale nią nie jest?

We have to stress again that all this only applies to gameplay, and gameplay isn’t everything. Many software entertainment products aren’t games at all. There’s no harm in that. Grim Fandango is a mystery story requiring you to solve puzzles; it is no more a game than a book of riddles is a game, but nobody cares because it’s fun.

Game Architecture and Design: A New Edition Andrew Rollings Dave Morris