- Polystyrene (mine is free and recycled).
- Cardboard ('frozen pizza' boxes)
- PVA glue
- Cheap acryllic paint
- Hot Cutter (mine is a 10$ cheap one from china)
- Snow: Mixed PVA glue, baking powder and white acryllics.
Take the polystyrene and arrange it in some large shapes. Make sure to incorporate some nice broad stairs into the design. I've made sure the stairs have room for a 40mm base, so models won't fall all over the place. Glue the polystyrene (I've used 2x 1'' boards) together and to a card board base. Use lots of glue and put it under pressure until dry.
I always add cardboard bases under my polystyrene terrain for some much needed strength.
Using the hot cutter, cut some nice big stone patterns into the platform. I've made the stone work plenty big. Mixing the size of stones, switching between square blocks and cobble stone. A lot of the final detail is secured at this point.
Mix PVA glue, dark grey (near black) acryllic, a tiny bit of sand and some water. Paint it into all the deep areas on the build. The glue help strengthen the polystyrene build.
Make a mix like above but in a lighter colour and with a bit more sand in it. Paint all your platforms. I paint random stones on the platforms. When I run out of paint mix, I try to get a new nuance in the next mix. So there'll be a nice mix by the end.
Use some Agrax Earthshade on areas painted in non-grey colours (sand and grey on my builds). Add snow mix, edge highlights (done quickly with a large brush) on the stones and other detailing. I've been using a bit of flock, basing flowers and added some old Games Workshop 'Ruined Temple' skulls.