The latest boom in robotics represents a revolution in the way machines have learned to interact with the world.

Saronic builds robot warships for the U.S. Navy -- and won a $392 million contract last year. Saronic needs even more money though, and so raised $1.75 billion in private funding last month. All of the companies named so far are publicly traded defense stocks.

Unitree is bringing its R1 to international markets. It arrives with some aerobatic capabilities and an entry-level price, but the question of what you'd actually do with it remains open.

Pragmata features a grizzled soldier and a robot child but doesn’t have the emotional bond of The Last of Us or The Walking Dead.