Since there's no way to add an explanation to this page and people probably aren't going to know to go to the game page, here's the game page's contents:
Knights is a battle card game for two players that uses a standard playing card deck with 54 cards.
These are all of the progression files created as I designed the game. See notes that go with each version on the jam community devlog.
By the way, the newest official version plus any additional cool things I might add later (like custom cards, perhaps) can be found at the Knights game page.