Editor's Note: APYs listed in this article are up-to-date as of the time of publication. They may fluctuate (up or down) as the Fed rate changes. CNBC Select will update as changes are made public.

If you're trying to defend your Base in Once Human and wood just isn't cutting it, the next step up is stone. Though you can’t work with raw Gravel, you can refine it into Sintered Brick instead. This ...