Portal level design

Getting Started

• Frequently Asked Questions
• Your First Level

General

• Controlling portals
• Glitch Prevention
• Logic gates
• Multiple Buttons For a Door
• Spawning With The Portalgun

Design

• Designing Test Chambers
• Detailing Metal Walls

Behind The Scenes

• Design & Detail
• Light Sources

Constructing Elements

Test Chamber

• Automatic Portals
• Box Dropper
• Cleansers/Fizzlers
• Countdown Clock
• Elevator
• Ending a map
• Energy Ball (Launcher & Catcher)
• Floor Button
• Hazard Liquid
• Incinerator
• Indicator Lights
• Lift Platforms
• Piston Panels
• Radio
• Recessed Lights
• Rotating Portalgun
• Scaffold
• Security Camera
• Switch
• Test Chamber Door
• Test Chamber Signs
• Turrets
• Wake-up Bed

Behind The Scenes

• Air Ducts
• Breaking Ladders
• Cat Walks
• Doors
• Fans
• Observation Hallways
• Piston Crushers
• Neurotoxin Gas
• Speakers
• Turret Claws
• Turret Doors
• Vacuum Tubes
• Vents

Scripting

• Bonus Maps
• Challenge scripts
• Making GLaDOS speak

Modding

• Making Your Portal Mod
• Gamepad UI in mods

Additive Information

• Custom AI Voice
• env_fire Fix
• NPC Portal Usage

References

• List of Console Variables
• List of Entities
• List of Fog Settings
• List of Graffiti Textures
• List of Levels
• List of Light Textures
• List of Particles
• List of Scenes
• List of Skies
• List of Soundscapes
• List of Soundtracks

External links

• Buy the game
• Gamebanana - Game Modding Community.
• MobyGames - Videogame Database
• Moddb - Community Modding Website.
• Portal (wikipedia article).
• Teaser Trailer
• Thinking.WithPortals.com Unofficial Modding Website.