What was the first game played in space?

Tetris was the first video game played in space—Russian cosmonaut Aleksandr A. Serebrov took his Game Boy with him on his 1993 mission to the MIR Space Station, and he played Tetris in his (limited) downtime.

In 2008, NASA astronaut Greg Chamitoff played several remote games of chess from the International Space Station against different planet-bound Earthlings. He used a felt board and affixed velcro to the bottom of the pieces to make sure none of them disappeared into the void.

The first-ever space sport was a 2018 doubles badminton match between Russian, American, and Japanese crewmembers of the ISS. The zero gravity environment made things a little tricky, but at the end of the day, they didn't even keep score—"friendship won."