Let's put your ideas to the test! The purpose of the sketch is to revisit and expand on your plans prior to in-game implementation.
For games with complex and time-consuming content creation pipeline (such as console RPGs), you may find this step in the process absolutely necessary. However, in less risky scenarios that do not require massive investments (for example, physics-based puzzle games), you might want to save time and jump straight into the next stage (grayboxing).
It is possible that many weeks or even months have passed since you wrote down your initial premise. Catch up with the rest of the team (and especially any other designers) and make sure that the premise still fits with the rest of the game.
Depending on the ...
