Lol, there competitions are continually stranger... And Interesting!

Honestly wtf is a cave shaped like? Is that a stupid question? Can you show me some example "cavy" caves?

Long Road To Ruin might be one. Lol, I thought of that only since I made it.

Take a look at the earlier main levels - they're kinda cavey to me. Terrain 1/3 would be recommended for the extra feeling too, I'd say.

I thought caves were very uneven, and had alot of unenterable rooms and tight squeezes like http://www.interguild.org/levels/index.php?id=2436

Of course there wouldn't be a random signature, but that probably doesn't count.

isn't it spelled "cavey"?

and jebby talked about cavey designs in one of his Cave Design sections for the Manual:
http://www.interguild.org/articles/?id=26

Items 4, 5, 6 and 7 are the most important in that article to making a cav(e?)y cave.

Edit: To make a cav(e?)y cave, I suggest making it like an actual cave is made. First fill everything with terrain and remove terrain from there, instead of starting with an empty space and placing terrain.

I wouldn't say 5 really makes it any more cave like. And the suggested trap for that number is extremely cheatable anyways.

I might enter this if I find enough time.

Ok, I have a cave for it, but I don't know where upload it. All accounts are used for PCCA's FirstSeries. I'll upload it on additional_cave_slot for some time. If somedoby want play Addit. Ser. from PCCA then upload there caves yourself.

http://www.interguild.org/levels/index.php?id=1664

Is this "cave-shaped"?

Pretty much.

I entered.