From their announcement:
This PDF card stock set can be used to build a secret headquarters, an evil lair, a hidden laboratory, or just a really dangerous neighborhood for your 3 3/4" action figures to explore. It can be added to the previous Finger and Toe action figure release, OUTLANDS, for even more variety.
This set was actually proposed by a seven-year-old named Liam who wanted more places to play with his action figures. He produced a simple paper half cube, and that was the genesis of L.I.A.M.: Core Modules. This set is designed so that you only need scissors (with ONE exception: the slit in the door), so with adult supervision a younger gamer should be able to assemble it.
Build four module level then stack and connect with bridges to create a stage for your adventures. A basic core module is a five inch cube, so a four module level is ten inches square and five high.
For a slide show go to www.fingerandtoe.com.
Remember, every Finger and Toe model comes with SMOOSH ASSURANCE: if ya’ll smoosh your L.I.A.M.: Core Modules, a new set waits your summons from hard drive and printer.