is getting a lot of mileage from repurposed pre-painted fantasy figs.
From Alpha Strike Games Limited
PDF – $1.49 USD
This is a set of 32 color tile maps, each 7 x 7 tiles. There are several variations of some of the maps, hence a low price. Print them out, glue to card, cut, put them on the table how you want, and have at it.
These can be used in just about any sci-fi RPG or tabletop skirmish game.