You can not play PlayStation 3 games on a PlayStation 1, but you can play PlayStation 1 games on a PlayStation 3. All of the PlayStation consoles are backwards compatible.
You cannot play Playstation 4 games on a Playstation 4 console. You are also unable to play Playstation 3 games on the Playstation 4.
you can only play playstation games on PlayStation 1, 2 and 3
no
no
no
no
no
no
No. PlayStation 3 games are not backwards-compatible with the PlayStation 2.
If the PlayStation 3 being used has reverse compatibility it can play PS2 games online with PlayStation 2 players.
no