Play vs Game

Play is exploration of a mechanic, while game is a competition using the mechanic.

A badminton match is a game. But just lobbying the shuttle between a few people is play. The mechanic here is the racket and shuttle.

PlayGame
Non-competitiveCompetitive
No end goalThere is an end goal
Stress freeCan have stress
No rules, or very lax rulesRigid rules

Rules are important when learning.