Blockers from BriarPatch is a reissued, theme-less version of the already essentially theme-less tile-laying game Uptown. Uptown was originally designed by Kory Heath and published by FRED Distribution.

Interestingly, Blockers was trademarked by FRED, and its used by permission by BriarPatch. Which leads me to believe that FRED did the un-theming and then pass it on to BriarPatch be published.