[Honey]

Thats a somewhat hard question to answer honestly, there are multiple games that I'd call really great Multiplayer games to play(especially to kill time), but for 9-10 players I could only recommend you big servers instead of team based gameplay. I'd recommend trying out Minecraft, there are servers with literally hundreds or thousands of players at a time, you and your friends can play gamemodes like skywars however if u are 9-10 players you'll prob have to make two teams and play seperately in the same session.