I wrote the Fathom and the Knights of Callisto settings for Heroic Dark Deluxe.
In The Knights of Callisto, you’re a mecha pilot facing down against giant monsters living on one of Jupiter’s moons. Excellent anime-esque heroic struggle!
In Fathom, you play an aquatic person (mermaids!) whose minor conflicts with land-dwellers pale in comparison to the existential threat of climate change. Set in a primitive era, with an ice age approaching.