Battlehex is a modular, hexagonal terrain building set designed for miniatures. You can combine streams, open ground, woods, and stones to create different combinations. It's a Kickstarter project, with future goals which include roads, bridges and more, and there are mentions of swamps and beaches.
It's hex-based, so may not be suitable for every game (especially square-based RPGs like Pathfinder and D&D - though D&D 5E does have hexes as an option in the DMG), and a box costs $64 for 60 hexes (although that covers and enormous 6' x 4' area!) The Kickstarter is looking for $25K and has nearly $15K of it with two weeks to go. If tabletop minitaure wargames are your thing, this seems perfect for it.
It's hex-based, so may not be suitable for every game (especially square-based RPGs like Pathfinder and D&D - though D&D 5E does have hexes as an option in the DMG), and a box costs $64 for 60 hexes (although that covers and enormous 6' x 4' area!) The Kickstarter is looking for $25K and has nearly $15K of it with two weeks to go. If tabletop minitaure wargames are your thing, this seems perfect for it.