game-design

A core loop follows the 30-second test: action, feedback, reward, repeat. Define what the player does, how the game responds, and what reward motivates repetition, then match the pattern to your genre such as run-jump-collect for platformers.

A GDD should include a one-sentence pitch, the core loop, mechanics, progression, art style, and audio direction. Keep it as a living document, use visuals to communicate, and start small rather than over-documenting.

Balance difficulty by targeting the flow state between frustration and boredom. Use dynamic difficulty adjustment, player-selectable difficulty, and accessibility options so different skill levels stay engaged.

Fixed schedules suit predictable milestone rewards, variable schedules create addictive loot drops, and ratio schedules reward effort-based grinding. Choose based on whether you want predictability, excitement, or effort-driven engagement.

Avoid designing in isolation, polishing before the game is fun, forcing a single playstyle, and punishing players excessively. Instead, playtest constantly, prototype first, allow player expression, and reward progress.