Two Rooms and a Boom – Card Storage Box (Print & Play or Commercial Version)
This custom-designed box was created to store the print & play version of Two Rooms and a Boom with room with space to fit all cards in standard plastic card protectors. That said, I'm sure it will accommodate the commercial version of the game just fine.
I personally went with rigid plastic protectors to give the cards a nice ID badge feel. If you're using thinner sleeves, you'll have a good bit of bonus space.
Cards are stored vertically with a little wiggle room, making it easy to flip through the deck without removing everything. There's also a front slot for holding both leader cheat sheets (I laminated mine), and possibly a folded rule sheet too. I didn't feel the need to print the rules so I haven’t tested that part yet.
These are the cards protectors I used specifically but they are all pretty standard in size. The game has 110 cards, more if you make custom cards: https://www.amazon.com/dp/B0B7CJT5SP?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
Here is where you can get the free print & play version of the game if you need it: https://www.pnpparadise.com/set-4/two-rooms-and-a-boom
The sliding lid design came from theprogrammer's The Mind card box (case): https://www.thingiverse.com/thing:5569197
The bomb on the lid was remixed from alavanimation's TNT smartphone stand: https://www.thingiverse.com/thing:605561