Dragon's Dogma Online will allow cross-play between 3 platforms

Dragon's Dogma Online
Crossplay platforms
Release Date: Aug 27, 2015
Crossplay platforms:
Dragon's Dogma Online will support cross-play across multiple platforms. It will be possible to play together with your friends on Windows PC, Playstation 3 and Playstation 4. Please check out all the details on the game's official website!
Summary:
A Free 2 Play online full open world game for the PS3, PS4 and PC.

Artworks:
Supported game modes:
  • Massively Multiplayer Online (MMO)
Supported player perspectives:
  • Third person