I am programming my own game called War Of Cards and I want to make a category of speedrunning for it but I don't see any buttons like "make category". Can I do it at all? If yes - how? (this game was published on my Google Drive: https://drive.google.com/drive/folders/1sIAV4hxoQExPGKTmgqhY5SgKi9RxwKC6?usp=sharing)

If you are asking about how to add your game to the site, you will have to request it (Read all the rules first): https://www.speedrun.com/requestgame