After the commander ill-advisedly opened the gate, the social network's alien horde stormed in and slaughtered forces stationed inside, in a battle fought on the frontiers of artificial-intelligence research. The bloody incident was part of an annual competition of the videogame StarCraft for AI software bots that wrapped up Sunday. Facebook quietly entered a bot called CherryPi designed by eight people employed by or affiliated with its AI research lab. The social network's stealthy space war suggests Facebook is serious about competing with Google and others to set showy new milestones in AI smarts. Google's London-based DeepMind AI research unit made headlines last year when its AlphaGo software defeated a champion at the board game Go.

StarCraft players are safe – but not for long. The machines that made short work of chess, Scrabble and Go are beginning to set their sights on the venerable video game. And while the inherent complexity of most video games makes them a much harder target for AI than board games, two new projects aim to show they are far from invulnerable. One is a training ground for artificial intelligences targeting StarCraft, opened today by the game's creator, Blizzard Entertainment, in collaboration with Google's AI company DeepMind. The other is an AI being developed by researchers in Denmark whose approach stands the first good chance of beating a human at the game.

Message from the world's best StarCraft players to the world's most advanced AI: bring it on. The space-war computer game is widely regarded as the ultimate challenge for AI programs due to its complexity and rapid pace. Expectations for a match-up between a professional StarCraft player and sophisticated AI ratcheted up last year after an AI program beat a highly ranked human player at Go, one of the world's most difficult board games. At the time, a number of AI experts pointed to StarCraft as the next target for an AI-versus-man showdown. Among them: Demis Hassabis, the founder and CEO of DeepMind, the AI-focused division of Alphabet that created the triumphant Go-playing AI program, AlphaGo.

Message from the world's best StarCraft players to the world's most advanced AI: bring it on. The space-war computer game is widely regarded as the ultimate challenge for AI programs due to its complexity and rapid pace. Expectations for a match-up between a professional StarCraft player and sophisticated AI ratcheted up last year after an AI program beat a highly ranked human player at Go, one of the world's most difficult board games. At the time, a number of AI experts pointed to StarCraft as the next target for an AI-versus-man showdown. Among them: Demis Hassabis, the founder and CEO of DeepMind, the AI-focused division of Alphabet that created the triumphant Go-playing AI program, AlphaGo.

Google's DeepMind is teaming up with Blizzard Entertainment Inc. to open up the world of the game StarCraft II to artificial intelligence researchers. DeepMind Staff Research Scientist Oriol Vinyals (above) announced the new partnership today during Blizzcon, Blizzard's annual convention held in Anaheim, Calif. According to Vinyals, who is himself a longtime StarCraft player, Blizzard will be releasing a StarCraft II application programming interface early next year that will allow researchers to build and train AI agents to play the game. "For StarCraft players like myself, advances in AI could deal some drastic benefits," Vialys said. "For example, we might see more interesting AI opponents for a variety of skill levels or AI coaches that can help players improve. And there's still a long way to go, but maybe we'll even see an agent take on the Blizzcon champion in a show match."