Immersive
Not everything is "immersive", and immersive != good/better, you shoudln't use it as a synonym for a higher grade of quality
Improper use cases and alternatives:
Sample 1:
"I don't like Undertale, it isn't immersive enough"
Dude, shut up, the heck you mean with "isn't immersive enough"? You saying that just because the characters aren't kissing each other and striking one-liners every second? Hop off
"I don't like Undertale, I feel like it isn't a finished product at times, and people just like it because of how 'quirky' it is with the "sparing monsters" thing and the whole Touhou-inspired battles shebang"
That's a horrible opinion, nonetheless, a way better setence. By now I think you're noticing a pattern here, yeah that's right: EXPLAIN WHAT YOU MEAN, COMMUNICATION IS ALREADY TOO HARD THE WAY IT IS, IT SHOULDN'T BE A GUESSING GAME, Y'KNOW?