STEP 5 OF 67 · YOU ARE THE DIRECTOR AND DESIGNER

Write the game's rules as observable behavior

Movement, combat, health, enemies, objectives, progression and death, each written as something you can test. This list becomes your development checklist.

How to do it

  1. Write one rule per line.
  2. Make every rule testable: "Press dodge to move quickly sideways and spend 20 stamina."
  3. Cover movement, combat, health, enemies, objectives, progression and death.
How AI speeds this up

Draft with Duke writes testable starter rules. Later, ask Duke to turn any rule into Blueprint steps or C++ code.

Example from a sample game

Ashfall: "Holding block reduces damage by 70% and drains 10 stamina per second." "At 0 health Kaia respawns at the last campfire and drops 10% of her coin."

Before you move on

In Duke Forger, this step's gate checks:

Words to know

Game rules
Exactly how the game behaves, written so each rule can be tested.
Blueprint
Unreal's visual scripting: you build game logic by connecting boxes (nodes) instead of typing code.
Do step 5 on your own game

Free: Phase 1 is included on every plan. Duke drafts it with you and checks it before step 6 opens.

Start free