Games need separate platinum trophies for single player and multiplayer.

[Dgc1808]

How about 1 platinum for every 29 trophies???

If a game has 58 standard trophies, it can have 2 platinums. After you get half you get 1 plat.

For a game that has online and offfline, this could work well. I could also see this working well for long RPG's.