Funnels & Fizzlers
Waaay back in 2011, the forum Thinking With Portals held a mapping contest sponsored by Valve. Participants had a few months to throw together a test chamber and submit it to the contest. I don’t remember how well I did (I can’t find the contest results, sadly), but that didn’t stop players from enjoying my map!
I made Funnels & Fizzlers with the Source SDK and Hammer level editor. Check out Djinndrache’s playthrough on YouTube!
Funnels & Fizzlers
Portal 2 Map