Flooring, Inserts, and a Little Juxtoposition

One cheap and easy, and light on the storage requirements, method to add more flavor to the 2.5d dungeon is to use inserts.  So far my dungeon has five of these clever little devices.  Rather than an unending series of black floors, these pieces of cardstock can be dropped in to add a little more pizzazz to the place.

 Here you can see how the octagonal room becomes a large ball room or central chamber.

This idea was lifted from The DMG Info guy but with a bit of a twist.  This smaller room has a nice tile insert, or maybe a summoning circle, but...

...my own personal twist is that these cardboard inserts are reversible.  The back side of each one features a more sci-fi feel. 

 The big room makes for a decent vehicle bay...

...or a flagstone floor.  Note that this requires the features be flat enough to not add wobble to the board when the wrong side is down.  All I've added is a bit of cereal box cardstock for hatch covers, because anything else would make the room wobble when used for fantasy.  You sacrifice some detail, but gain a lot of flexibility.

 

Now the dungeon tiles can also be used to create a space station for use with the sci-fi figures.  All that will take is some suitable powered doors, sci-fi furniture, and other bric-a-brac.  I figure I can cannibalize the city scape for vending machines, benches, planters, and vehicles for the repair bay, so all it really needs is a few sales kiosks and maybe a sci-fi fountain. Here's a shot of all of the sci-fi inserts together. 

Come to think of it, there could be a Barrier Peaks style room or two in Castle Meatgrinder where these would be appropriate, too...