Built generate your own cdoom maps with oblige or use doom builder

[killer_of_retardeds]

CDoom test with map generated by oblige with 3d floors using -sectormassacre parameter
https://www.youtube.com/watch?v=r-T8byTtuPc

To built your own cdoom maps with 3dfloors use legacy mode of oblige (6.10 version recommended for more 3dfloors more switches doors below above and more variation of dark light areas)
Put the legacy.lua file below into your oblige/engines directory
Select the options in oblige.exe at your taste or use config.txt below into main directory of oblige
Using F5 you can set your own random seed to generate the map at your taste

Using doombuilder you need to use a cdoom207.cfg file into yout doombuilder dir attached below