cool game i found

i was playing on gamejolt and i found this game i downaldoed it and its kinda cool i guess its like fnaf but in 3d version and you can walk around and stuff and it is so but also windows dender thinks its a virus? idk why but tha devloper said it was because its unsighed and it donwload a lot of files and the game fiels and it new and stuff but can somoene tell me if that is true or not

https://gamejolt.com/games/fnaf3d/790677

there it is thank you