Portal 101 Advanced: Gadget, SDK Tool, Rules Editor
The Advanced Portal guide covers three creator tools: the Portal Gadget (binds custom gameplay logic to player interactions like button presses), the Portal SDK Tool (Windows-only spatial map editing built on Godot), and the Rules Editor in Portal Builder (logic-based scripting with 200+ actions for complex mechanics and AI behaviours via TypeScript).
Tool breakdown:
Portal Gadget: in-game device that binds custom logic to player interactions (button presses, proximity)
Portal SDK Tool: Windows-only application for spatial map editing, built on the Godot game editor
Rules Editor: logic-based scripting in Portal Builder, over 200 actions available
Visual rules: basic creators stay code-free
TypeScript: advanced creators get full programmability for AI behaviours and complex mechanics