No, there's no need to download just about anything. All games within our database are browser-centered and don't demand any download or installation. Having said that, some older games have to have Flash player, so You may have to install it if you want to play some of these games https://colab.research.google.com/drive/1KVqOW6gAvrbPtK3-dH-IVqvYT-UdjZlb?hl=te