Simply put, The Lattice is a freeform roleplaying gaming environment, designed specifically to allow the players as much freedom to explore science fiction adventures as possible. To understand The Lattice, therefore, you must understand both science fiction and roleplaying. Read further through this Help section for those insights.
Also, if you have not read the Tour of the Lattice -- at least the four-page overview -- you will be lost. This tour provides a general description of the particular vision of a future era, and the worlds and societies that exist there. Do not neglect the tour!
There is NO CHARGE to join the Lattice. It is free, free, free.