It's an attempt to create a real time strategy game using cards on fediverse.
What's Fediverse?
You can think of the fediverse as a social network, but it's not just one network, it's a collection of networks that can communicate with each other.
Each network is called an instance, and each instance can have its own rules, moderation, and community. So in the context of Wild League, each instance can have its own cards, skins, ranking etc
The more recent and popular instance is Threads, but there are many others like Mastodon, Pleroma, Misskey, etc.
General game idea
The idea is to have a game that can be played in a few minutes, and at the same time be fun and challenging, that can be played for hours.
For now, you can think of it as a decentralized version of Clash Royale. So the main difference is that you can play with the cards that you have on your server, or search for new cards on other servers.
Each player will have a deck of cards, and will play against other players in real time, the goal is to destroy the enemy base.