Define 'good multiplayer game. I had tons of fun when I was a child playing chess on PC and a chess-like game called Archon on the Nes;It was 2-player.
Simple games are totally compatible with digital gaming. It would clean the drudgery and you could actually run more advanced calculations-modifiers/saves and on. Faster than the it-takes-hours mess the table top experience currently is.
It's the oversimplification of games that's killing gaming, for me anyway. Nobody wants to put the money into long-term developement. This statement is an oversimplifaction in itself, but hordes/warmachine/malifaux would be a fun/workable games to play online.
Making clones of games makes me sad. Too many good game concepts being neglected.
-----Edit
Thinking it over, while making a digital copy of D&D, that would truly be faithful to the tabletop, is something no-one would want to handle, 4th edition's core mechanics would hold up fairly well. 4th would be a great place to start, it was more complicated than most people wanted, but allowed for tactical encounters; with hazzards, traps, and terrain being the swing point. So an electronic version would allow for people who like to tinker continually tinking on and off, while saving everything they've done in a convienent manner.
Releasing a D&D game like an open source Bethesda game. Having easy access to level design, monster/boss overhaul, and building tools like a Gary's mod or Miku Miku Dance. The main desingers could release DLC with new monsters, effects and attacks, while Players could tweak their own designs.
One day, the electronic RPG will actually be an RPG, we just need somebody to start it.
Honestly, Sony and Microsoft are the only 2 producers who have the spirit to do it. Dark Souls and various other games would have never existed without console cooperation.
There would be less room for interpitation but that's what paper and pencil is for.