This is the most simple access to building 3D dungeons ever.
But the essential tool is the foam cutter.
It's not possible to make a perfectly straight cut with a carpet cutter or another kind of knife.
But who owns a foam cutter will be excited of the easy handling.
No need to size, no need to mark. Fix the wire on a 90° angle and create your own fantasy world in little time. Even the creation of walkable stairs takes olny a few minutes.
With a ruler and a pencil it's easy to engrave different tile patterns.
Little streams, lakes and puddles can be made with transparent resin. The dimples can be trenched with a soldering gun and a wire snare.
Every thinner-free glue can be used and of course the hot-meld-gun.
Every acrylic or water based color is applicable. Once the board is painted, the color is resistant to abrasion. Don't use thinner based color or varnish, it damages the material.
Example: Building a Dungeon