Kartenwelt

"Card World" is a card game completely under your control. You can adapt other games, novels, and movies to create a brand-new game that belongs entirely to you.
This game is intended for players with a desire to create and play. It is planned to open a creative workshop, allowing you to play games made by everyone, share the games you make, and of course, share your created games with others offline.
The way to create a new game is through editing Excel spreadsheets. It takes a little time to watch the tutorials (recommended), or you can directly check the comments in Excel to make the game.
Although the game only provides Chinese and English, in fact, you can use it to make games in any language and with any BGM. However, the video tutorials are currently planned to be only in Chinese and English versions.