A preschooler died after an accident incured playing this game in the mid '80s at a local church’s daycare program.
Sadly, this is not a joke.
I’ve played a variation of moriah’s game as well, called Train Wreck. It might be a liiiiiitle too complex for four-year-olds, but you might try it. Basically however many kids there are, you use one less chair. The chairless kid stands in the center. With the kids so young, you might want to be the “caller,” but normally it’s played with the center person being the caller.
They (or you) say “everyone wearing blue!” and everyone wearing blue has to get up and find a different chair (and the center person finds any chair). The last person is now the new center person, and they call out next … “everyone with a K in their name!”
This is where it might be too difficult for the four-year-olds, so you may want to be the caller yourself and keep it simple – colors they’re wearing, boys versus girls, single child or has a sibling, etc. It’s a musical chairs type of game, but one where any heartbreak only lasts a second, as you’re moving to another round immediately, and no one ever goes out of the game.