What are some of the best free to play games online now that don't take up too much space?
World of tanks, Robocrackaft, Marvel Puzzle Quest
currently waiting for Fortnite, Orcs Must die
Shameless plug for Planetside 2. Love that game.
Requires a great computer to handle it though.
EDIT: 10 gigs of space though, not sure if that's big or not to you