Sony and Lockwood Publishing have released a teaser trailer for Mercia; Fractured Realms, which is a free-to-play MMO that takes place within PlayStation Home. "Huge worlds" and "narrative depth" are apparently major parts of the game, which might well tempt a few nonplussed PS3 owners into sticking around on the somewhat under-featured social platform. More details are set to release during Gamescom 2012.