The Pokemon franchise sees another spin-off in Pokemon Conquest; a crossover of Pokemon and Nobunaga's Ambition. According to the reviewer, "It’s amazing that a game like these even came to the US, but I’m glad it did and you should probably make this the next addition to your DS or 3DS library. I would argue this is one of the best Pokemon, spin-off games yet."
From Cinelinx:
As we prepare to embark on a new Pokémon adventure, we’re taking a look back on the franchise’s spin-off titles and which ones should return!
With the vast number of Pokémon games in existence there will undoubtedly be some that don’t get the recognition they deserve. So here are 10 Pokémon games that are underrated and that deserve your attention today!
Xfire writes "It's not often that a video game franchise becomes successful enough that it gets a spin-off title or two. However, while most spin-offs help expand the base, some spin-off games end up being better than the original."
Zombie Army 4 was incredible, it just inches out Sniper Elite 4 which was also incredible.