Start with the core play experience
Game development begins with what the player does repeatedly and why that interaction is engaging. A prototype can help evaluate controls, pacing, feedback, and progression before expanding the content. The planned audience, devices, art direction, and distribution route shape the scope. A prototype is an exploration tool, not automatically a release-ready game.
Define the supporting systems
Discuss sessions, saving progress, sound controls, accessibility options, tutorials, and failure or restart behavior. Online accounts, multiplayer, purchases, and user-generated content introduce additional requirements that should be scoped explicitly. Do not assume these systems are included simply because a game has an attractive visual concept.
Make review practical
Agree examples of the intended player journey, supported devices, content responsibilities, and acceptance expectations. Review how the game behaves when paused, interrupted, or restarted. Asset licensing and ownership must be clear before distribution. Release preparation and future content updates can be discussed as separate parts of the engagement.