I tried to get a level design contest for Wall Worm last year. It failed to get anyone involved. But I'm tenacious, and after I talked to many of the WW users who considered participating but did not, I went back to the drawing board and have come to round 2.
The previous contest had too many expectations (I wanted level designers to use all the advanced features in WW without giving them time to learn the basic Max UI... so the bar was too high). Hopefully this new one is more likely to get people to participate.
In Old School Level Design Contest #1, you are not allowed to use models. Nope. Just BSP.
To help inspire, I've shared a silly little level called bsp_heaven compiled into Black Mesa that I made in jest for BM level designer Chris Horn's birthday last month. That silly level was made from scratch to final compile in 24 hours in Max. Hopefully it helps spur some creativity and helps get some interest.