Back when True20 was still new there was a "campaign world" created for it;
Mecha vs. Kaiju. It eventually spun off into a full blown product.
I talked about it more recently
when Pacific Rim came out.
Well True20 sadly never got the traction it should have, but there is a new system to fill it's niche, Fate, and new Mecha vs. Kaiju for it.
https://www.kickstarter.com/projects/1171175182/mecha-vs-kaiju-a-sci-fi-anime-rpg-for-fate-core
If it is anything like the True20 it will be ridiculously fun.
Though it looks like to me this not a simple conversion, but a complete rewrite to fit the Fate rules.
If that is the case then this stands to be a really, really fun game.
If it does for Fate what it did for True20 in my mind then this is an easy winner.
I have been dying to do something with Fate and this just might be the thing I need.
Mecha vs. Kaiju True20 Version
The game is set up much like other True20 books. You have your three archetypes/characters (Adept, Expert, Warrior) and a host of new feats and powers to choose from. Some are campaign-specific but almost all could be used anywhere else. In fact there is enough here that the main feature of MvK is readily apparent; you don't have to do games about fighting giant monsters all the time. Now of course the main plot and thrust of this game is fighting giant monsters, but I can easily see some adventures of exploring monster islands, contests between cocky pilots, mad scientists, children with newly awakened psychic powers.
When I first read this game my thoughts went first to Godzilla, but you can do Akira here as well and any number of other "Neo Tokyo" genres. Plus it is compatible with a host of True20 books I already have, so adding cyberpunk, horror or even comedy is easy.
If you don't like the campaign background you can leave it, but I think you would be missing out on something really fun if you do.
This might in fact be my favorite True20 setting.