This is the last set to get all the basic cut-stone tiles out. In this release, we get the rectangular full risers , as well as a bunch of new floor tiles that have since been added to OpenLOCK after we started this process.
Specifically, we added EB (2x2, alternate port layout), EC (3x3, standard port layout), RB (4x2, alternate port layout), UB (4x4, alternate port layout), 6x6, 6x6B (alternate port layout).
With this, it's time to start looking at other useful OpenLOCK pieces. The first I'll likely tackle is doors, as that is really fairly important to making these actually useful (and those tiles have been getting some votes).
If you have not yet done so, set up an account on the backer site, and vote for what you want to see!