hey victen! sorry the language barrier affected your experience so much--we did our best to make the UI intuitive with arrows and other animations, but at the end of the day, it's going to be really hard to play if the cards' effects don't make sense to you.
if you want to try again, a brief explanation: Card Affinity is color coded. as the player, your goal is to eliminate all of the enemy's cards on the top left, by using your cards on the bottom right! the "not-so-common" words are just the the cards' names.
we tried our best to make this intuitive by making the first phase *really* easy, so that the player would learn by experience, but if you get stuck there, it's definitely rough. no chance for localization in a game jam >:P
about the theme: "share knowledge" doesn't have to be *exclusively* academic! someone could share memories, feelings, and more, and i think it would still qualify as "sharing knowledge." in our case, our *STORY* is where the knowledge-sharing happens: the characters you encounter remind you of what it means to really live your life, instead of hiding away. but you definitely won't get to experience that part if you get stuck early on!
i'd love for you to try it again if you get a chance :) thank you so much for the feedback!