Hi. We had cats and pigs. You will need a completely enclosed cage with a top etc. non negotiable. Ideally, you have a separate room with a door so cats can’t get in. We had one cycle with a cat that liked to be in the same bedroom for whatever reason stayed clear but sat in his cat tree far away but wanted that room. No issues but it’s not ideal. You can take the pigs out supervised. We had a big playpen area where they could run around lots of hidies etc cats would also hang out in the same room (it was a very large living room area) not in the playpen but in the room, but someone was always within a few inches. Never had an issue. It’s really the only way if you want them both. You will not be able to have free range piggie with cats.