(sorry for the paragraph I don't like when a creator I like gets accused of making a virus.) unless the creator's account got hacked it's not a virus. Some games use certain files or are constructed in certain ways, making your computer think it's a virus. if it's just Windows Defender, press the underlined text and press run anyway. if you are still concerned about it put all your unrecoverable files onto a flash drive then run the game to see if it's a virus.