Maps
Eternal Silence
- Relay
- Arlon (in development)
Portal
Team Fortress 2
- Achievement SuperIdle
- Arena Foggy Crest
- Achievement Idle
- Sniper Crevasse
- Surf Serpent
- Surf Fantastic
Tutorials
Valve Developer Community
- Eternal Silence - Basic Design
- Eternal Silence - Your First Eternal Silence Level
- Portal - Creating moving stairs
- Portal - Creating an observation hallway
- Portal - Creating a portal elevator
- Portal - Creating a wake-up bed
- Portal - Creating a wall light
- Portal - Detailing metal walls
Programs
Spamman
- An intuitive and easy-to-use alternative to HLSS and HLDJ
- Download
Winmover
- Adds move window keyboard shortcuts to Windows XP (eg. Win+left)
- Download & Source
3D Modeling
Google Sketchup/Building Maker
- 150 models; 144 included in Google Earth
- View 3D Warehouse