: Add final models, textures, and sounds only after it is fun.
Rouse outlines a specific iterative workflow to ensure a feature actually works in practice:
Before writing a single line of code, define the of the game. This is a single paragraph that serves as the "litmus test" for every feature. If a feature doesn't directly support this focus, it should be cut or revised. Game Design: Theory & Practice 2nd Edition
: Build a "grey box" version with no art.
: Observe unbiased players to see if the feature meets expectations. Example: "The Magnet-Grapple" (Atomic Sam Style) : Add final models, textures, and sounds only
: Add the actual mechanics (combat, puzzles, etc.).
: Write a brief technical and design description. If a feature doesn't directly support this focus,
: Robot enemies will prioritize cutting the tether with laser fire if Sam stays in the air for more than 3 seconds.