I have been using the trial version of FPS Creator, and its pretty cool. I have made a new map, and its an Abandoned Foyer Facility. Im not so sure if thats the best name, but anyways...
Its a huge abandoned place with a lava room and a fire room, surrounded by windows. There is even doors that go directly into the heat. Or you can go in through the floor openings.
There are many secrets and places to go on this map, ill let you figure out all of them. There is a plot going on here, but feel free to still explore.
The story: This facility use to be in full operation, but has been left for an unknown reason. The fire pit still runs, and one of their 1 inch lava pools is still there.
You are an adventuerer who has heard a myth about a gold stash somewhere on the level. So you are exploring the level to try to find the gold. There is a gold stash, and once you get to it you win. The stash of gold is very hard to find, so good luck finding it.
You might get some lag in some areas, mostly the upper areas and when you start. But it only happens once or twice, then itll just go away.
Screenshot: http://img129.imageshack.us/my.php?image=fire1iw6.jpg
(ill add a full level picture in a bit)
Ive attached the map on this post. Enjoy! You can modify it all you want, but please give me credit.
**Has mastered the overly long stair proffesion