For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Agar.io - The smash hit game! Control your cell and eat other players to grow larger! Play with millions of players around the world and try to become the biggest cell of all!
Dropbox - Online Sync and File Sharing
Slither.io - Slither.io is a multiplayer online video game. Players control an avatar resembling a worm, which consumes multicolored pellets, both from other players and ones that naturally spawn on the map in the game, to grow in size.
Google Drive - Access and sync your files anywhere
Spore - Player Made Creations. Download the free Creature Creator to start making your own unique creations. See More · Spore. rabbi airs. Kangster.
Mega - Secure File Storage and collaboration