

The game originally began when a Mane6 team member, Anukan made mock-up screens under the title of "Marevel vs Clopcom" and posted them to a Ponychan board discussing fighting ponies. However, one of the animators stated that the team would not provide a custom pony creator and/or alternate costumes they are practically impossible to make due to engine limitations and technical difficulties. Players were to be allowed to select a color scheme for their character from fixed palettes. The Everfree Forest and Canterlot were mentioned. My Little Pony: Fighting is Magic was to feature various stages that represented places from Equestria. Character-specific moves were also to be present in-game. Both local and online multiplayer modes were to be included as well as a story mode. The game was to be downloadable and free to play. Eleven more characters were to follow in semi-regular updates.

The final version of the game was to feature seventeen playable characters in all with the six main characters from the show playable from launch. Them's Fightin' Herds was submitted for crowdfunding through Indiegogo and surpassed its funding goal before the set deadline of October 22, 2015. In August 2015, the game was relaunched under the title Them's Fightin' Herds. Though the game will no longer be developed based on the My Little Pony characters, the Mane6 team (with some membership changes) has reused the core gameplay elements they devised, with new non-copyrighted characters provided by artist Lauren Faust, the original creative lead on the Friendship is Magic series. Being of a fan-made nature, this game was neither licensed nor endorsed by Hasbro. It was under development by a team of nine volunteers who call themselves Mane6. My Little Pony: Fighting is Magic was an upcoming fan-made fighting game inspired by the animated television series My Little Pony Friendship is Magic.
