(Cyberpunk 2077 Crossover, spoilers for both the game and anime for those who haven't played or watched it yet)
After attacking Canterlot Castle, Grogar seals Celestia and Luna away in another dimension. The two sisters, trapped in an alien world far more advanced than their own, ruled by money and an oligarchal collection of megacorporations, must find a way to survive and eventually return home.

(Being continued and rewritten as of the 21st of September, 2022, the Cyberpunk anime inspired me to continue, once new chapters come out I'd advise readers to reread the earlier chapters as I will be making drastic changes)