Rocksteady is an original font design for pretty specialized applications. It’s super bold and irregular, with two different character sets. The upper case just looks like a bold, rough-hewn alphabet, but the lower case looks like the same characters but assembled from stacked, rough stones. Hence the name and the rock themed preview graphics.
Rocksteady could be a fun font for special purposes – book covers, music labels, maybe a construction company logo. It is somewhat inspired by pulp novel cover lettering.