Is it feasible to add Exploding Kittens to the Playroom? This game doesn't seem very complicated, and it would be awesome to have it
available here.

what is this game like

rules please?

in short, it's a card game. Players take turns drawing cards from the deck, which determines the outcome of the game. you can explode and leave, but there is a way out - use cards and their combinations to avoid losing.

I've always wanted to play this. It might be fun.

Without meaning to sound rude or anything, do you think in short is enough to program and code an entire game?
What you described isn't enough to even start.

In any case, this game was in fact suggested in the past and accepted as one of the possible candidates for a future game since it looked quite interesting. More information about the rules and everything else can be found in a previous topic at https://qcsalon.net/en/forum6/topic64842

Even there however we seemed to be missing some important information like how the rest of the deck looks like / what are other cards and their effects.
Unfortunately other sites with rules assume you're just trying to learn how to physically play the game, and so avoid telling you what every card does and what its effect is, because the assumption is you can just look at the game you purchased and check that out and instead focus on information that is important so you can start playing. That's unfortunate, because the game looks quite interesting. Hopefully someone can find more information.