Happy Wars is shutting down on PC and Xbox 360 - Polygon
Accidentally-released Happy Wars Xbox One version breaks game on Xbox 360 | Eurogamer.net
Celebrate One Year of Happy Wars with Microsoft Studios! - Xbox Wire
Happy Wars is Now Available for Xbox One - Xbox Wire
Happy Wars Title Update 5
Happy Wars Xbox One Goes Live Early, Breaks Xbox 360 Version - GameSpot
Happy Wars Hits 8 Million Downloads on Xbox 360; Shares X1 Updates - Xbox Wire
Happy Wars - GameSpot
Happy Wars on Twitter: "Service for Happy Wars on Xbox 360 and Windows 10 ended today, December 17th at midnight (UTC). We would like to thank all of our fans and players