what dahek is alice in borderland about?
The main character gets transported to this strange world with his friends where they find that they either have to participate in these games or die. Each game they participate in basically acts as a "pass" that extends how much time they can explore and uncover secrets before they have to play another one. It uses the death game trope (like Squid Game, Battle Royale, or Zero Escape) where you playing the games itself is deadly, though you can survive them with good luck, skill, or cooperation. It's also a bit different from other stories in the genre in that there are different games that emphasize your physical ability vs. ability to understand other people vs. ability to use logic and reasoning. These different types of games are represented by the different suits in the cards, hence all the card motifs in the trailer.
I really liked it, but I really like death game stories. There aren't enough out there that play with the trope and do it well.