I'm happy to announce that Tacticolor, my real-time strategy game for Xbox LIVE Indie Games, is now open source. All the assets and code are available from the linked Mercurial repository. The code is decidedly not a shining example of exemplary design and implementation but nevertheless there are pieces that are not outright terrible, perhaps even good. Of note are the lockstep networking bits for online multiplayer and the AI. I hope it proves interesting and useful for the community. Enjoy!