John from We Got This Covered wrote:
"Happy Wars is a unique product, not so much in its gameplay as much as its method of delivery. The game is the first Xbox Live Arcade title that costs nothing to download and play in full, though an Xbox Live Gold membership is required. Instead, it takes the “freemium” route seen in numerous PC and mobile titles, where money can instead be optionally spent on downloadable add-on items. The game itself is a mostly well-made multiplayer romp that, while easy to pick up and play, will offer the most to people who are willing to put time into getting every mechanic down."
70/100