Just curious--would you try to do a version of this game with something like the Invulnerable RPG engine?
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Hi! I have no plans to release an Uru Ulan book for Invulnerable. My game designs have improved over time I think, so I'd be more likely to someday release a dedicated Earth-Omega sourcebook to Cosmic Cutthroats. Until I do, the Invulnerable core book is still useful, for all the setting and timeline info.
Cutthroats does mentions Earth-Omega as a possible setting (pg 342) and has stats for Unstoppable Girl (pg 376).
If you want more supers options for Cutthroats, the Cutthroat Codex has stats for more characters (A.P.E.X. Field Agents, Unstoppable Man, Dr. DNApe, Trance), additional LSRM Packages (Atlanteans, Avatars, Vunorians). and additional Power Packages (Battle-Suited, Bio-Engineered). The Codex is here: https://drive.google.com/file/d/1xj21xq3vKvkBl_UhZ8eCy71TmIeGmwBT/view?usp=shari.... I hope this helps!