SAGArole playing rules, (we used their melee and shooting rules for skirmish games too)
LOL! the roofs are the trays for Little ceasare dog food containers! Look in your grocery isle. They throw them out, and encourage you to take them (They also have clear ones)
I built a spaceship corrider section out of them (thin styrene plastiuc, BTW) and must have several hundred in a stack, ready for insparation!
The boards are just 3/16" mdf, with Afrika Mustard house paint (leftover from my living room, I used panzer colors for the room, Mustard, red brown, and dark green

) sand, and drybrushed terras cotta acryllic.
Those boards were given to local chir'ren, who now game Star Wars and Africa Corp WWII games in 10mm (yes, I'm proud of myself )
That is not the jungle gaming table, it is my work table, with stuff just piled on for the pictures.
