Ask HN: VLAN VM/multiseat gaming server for older games?

I would like to make a server that would output games in VM to several other devices like tablets, or have several people using the same computer with different monitors, keyboard and mouse. I don't think it is too demanding since it will be games like AOE2, SC:BW, UT2004, Stardew Valley, Quake 3, Minecraft, nothing too demanding. Games that are on one screen It would be a cool pick up and play system, I am not tied to any of the ideas I would like ideas for a portable server that can play PC games together easily would be like and maybe some suggested games. Games like SSB:M could be done on one screen.