Cardbots is a print-and-play game where you build your robots and then fight with them.
One day Amazon Board Game Sale
There are lots of good “gamers” games on sale today on Amazon: Zombicide, Small World, Five Tribes, Robo Rally, Tokaido, Ticket To Ride, etc.
Dungeons and Dagon
Dungeons and Dagon is a free RPG of adventure in the world of the Cthulhu Mythos.