Happy Wars was supposed to be released today, but the only Happy Wars content on Xbox Live Marketplace is the game's trailer at the moment.
Major Nelson has tweeted, "I know the team is aware of the issue and actively working on it."
Happy Wars is going to be the first free-to-play multiplayer title on Xbox Live Arcade; the only pre-requisite is an Xbox Live Gold account.
Happy Wars missing from Xbox Live Marketplace
13 October 2012 | By JonahFalcon