Samurai squad - Team Ninja
Team Ninja's Rise of the Ronin will have four player co-op
Team Ninja's Rise of the Ronin will have four player co-op
PlayStation's Rise of the Ronin Confirmed to Include 4-Player Co-op and One Feature Fans Won't Get Enough Of!
Team Ninja's Rise of the Ronin looks like an ambitious open-world combat game - Polygon
Shadow Tactics: the Board Game + solo/co-op Ronin expansion by Antler Games — Kickstarter
News - Rise of the Ronin will have up to 4 player online co-op as well as a character creator.
Team Ninja's Rise of the Ronin will have four player co-op
Rise of the Ronin Wiki
Rise of The Ronin Features Four Player Co-Op and a Character Creator
Rise of the Ronin FAQ Reveals Character Creator, Online Multiplayer, And More - Try Hard Guides