Lots of great stuff in this thread all.
I think there are (and this thread shows) different things that get classed as immersion. I see three:
1. In character immersion = I am thinking/experiencing this as this person.
2. World immersion = Verisimilitude (this is plausibly a real place – consistent with established fictional assumptions).
3. Experience immersion = Engagement.
Breaking immersion I think has a more useful and common phrase: breaks my suspension of disbelief.
Of the three above: engagement is a precursor for the other two, but I wouldn’t use the term immersion for it.
To me the reason d’etre for all RPG adjacent activities is engagement. Whether that is engagement in a tactical combat, or engagement in a story, or engagement in world creation. I see how people could use “immersion” as a synonym here, but they are different to me.
Immersion is . . . unique to a particular type of RPG.
A game of
The Quiet Year is highly engaging. You are creating a fictional world together, adding details, and riffing on ideas. It is when it goes well (it always has for me) very engaging – a state of flow and collaborative consensus base story-telling/world building.
I am not immersed. I am not in that world. We switch hats too rapidly between factions and ideas. It is highly engaging experience and you can spend much time afterwards recalling what you built together.
I can be engaged with any manner of mechanics in any kind of game.
Verisimilitude (world immersion) butts against some mechanics. Games whose mechanics are heavily focused on manipulating and pursuing the story tend to butt against this. Or games that have a mechanic which seems incongruous (or in opposition) with the world.
A certain tolerance for these is normal, but for most people there seem to be tipping points. Games that are emulating a genre tend to dip me in and out of immersion.
In character immersion is the most . . . fragile. It’s also the only one that I don’t have another word for. Fundamentally, it is what I think of when I think immersion. The most things will deny you in-character immersion. There are games where you switch hats too much. By this I mean you literally you change your character or from your character to creating things about the world so often (typically GMless games) that any immersion is fleeting.
Or where some mechanic is so demanding (usually combat) that it makes you step back and engage in a different for long stretches removing the character immersion.
The most immersive game I have experienced is Amber Diceless. There’s just . . . nothing really to get in your way. You are your character (with wacky powers sure). But just you, and the mechanics fade away.
My wife runs an immersive, site-specific, historic, escape room theatre company. Performances are generally in museums and historic sites. What is immersion there for our audience?
Everything around them is real. Usually they are a person from that time. They have tasks to do or a plausible puzzle to solve.
They are stepping into someone’s shoes, surrounded by an environment as close to another time period as it could be. We avoid handing them anything that plausibly breaks that immersion. And handing them an object is very immersive.
In RPGs I think immersion is something that has a pretty high bar. But conversely can be dipped into and out of often if the player wants (given a few things going well). This amounts to wanting it – listening to a description and imagining you are there as your character, and aiming to think as your character.
Side note: I play all types of RPGs for engagement. This ties into a mini rant I have about the way folks talk about “fun” in RPGs.
Is it fun to have a character die? No it sucks.
Is if fun to lose (be it a goal, a place, something, or just a fight) and play through the consequences? This too sucks.
Is it fun to play an awful person? Debateable.
Is it fun to betray your friends or betray yourself? Probably not.
Hell is it fun when someone interprets the rules differently then you? When the GM says no?
What all of these things
can be is extremely memorable and very engaging.
I suppose this is because to me, fun is pursuing something in the moment. Too often this "fun" is just being silly or getting a laugh. Engagement is more long term – it is a little more like joy.