There might be consequences of not playing or not following the rules, but there is always a choice required. Driving in the right side of the road, shaking people's hands, and paying taxes are games one has a choice about playing. There are certain rules and boundaries that appear to be externally defined, and you choose to follow them or not. If you stop following them you aren't playing the game any longer. There is no rule that says you have to follow the rules.
All finite games have rules.
If you follow the rules you are playing the game. If you don't follow the rules you aren't playing. If you move the pieces in different ways in chess, you are no longer playing chess. Infinite players play with rules and boundaries. They include them as part of their playing.