From publisher blurb:
Modular Kit: Mine Tunnels is a printable dungeon tileset compatible with any RPG/Dungeon-Crawl game. It can be used as a standalone set, or combined with any same-scale tileset.
Modular Kit: Mine Tunnels comprises 59 different tiles that can be printed multiple times and arranged in limitless combinations to produce dwarven mines, abandoned wild-west mines and more!
Included:
PDF printable sheets, with both gridded and non-gridded versions
A set of 300dpi full size png files, for poster printing or VTT.
A sheet of wall and floor textures, for custom wall layouts
This set is compatible with all of the Modular Kit range - use the transitional pieces provided with Modular Caves & Sewers to link all the pieces perfectly.
This set is compatible with the 2.5D crafting system, a crafting technique for making dungeon tiles more than 2D but not quite 3D. The 2.5D system was created by DM Scotty (Google his forum for tips)