Scratch

Multiplayer games are good with multiple people

The script below lets there be a 'room' of up to 5 people

when gf clicked
let [5] people join group

The script below makes people join a group

when gf clicked
join group

The script below determines if people should use the same sprite

when gf clicked
people controlling the same sprite [on v]

The script below tells that up to 5 people can use their own sprite

when gf clicked
let [5] people join group
people controlling the same sprite [off v]
join group