I'm guilty of multiple POVs in the same chapter (not that I actually have chapters, since I'm not even sure exactly where some of the scenes are going to end up).
The easiest part of my Kingmaker story will be what is directly based on the game, because that is all from one single character's POV. What got me going off into other characters' POVs is that I honestly wondered what they thought about the situation.
For instance, there's a scene in Kingmaker: Rise to the Throne where the POV character and another character talk about the true heir to the throne proving his lineage. That person is standing right there, listening, and this is the first time in the game he's been explicitly told that there even is a true heir, never mind that it's him. Yet he takes it all in stride and doesn't question anything at all ("Oh, you want me to go on a quest to find my ancestor's legendary crown? Okay. I mean, I've just been framed for the king's murder, captured, tortured, and had to escape by jumping out of a storm pipe into a lake a long way below while wearing armor and trying not to drown while swimming to the shore and by the way I'm the rightful king and nobody told me before two minutes ago, but that's cool, no problem").
I decided that yes, he is going to question it, and demand answers. He's going to have some serious thoughts about those answers. That necessitates getting into his head, and that means his POV.
I don't know if I can pull this off, but I plan to try. It's going to be a challenge, though.