Sorry, but I need a bit more information to figure out what this game jam is really about. From my understanding (and the provided wikipedia link), we're talking story-driven games with mild puzzles (point-and-click or inventory based), and slow-paced gameplay. But you also said that innovation outside of genre is encouraged, before making it clear that non-adventure games would be removed.
So which of these examples would qualify as "graphical adventure games" and avoid being removed?
1. Puzzle games like The Witness and Hunie Pop. Big visual focus, some story-based gameplay, but gameplay mostly centered around a smaller puzzle minigame. I'm proud to probably be the first person ever to use those two games as the same example. XD
2. Card games or other turn-based strategy games with a visual novel storyline. Regency Solitaire comes to mind, but I mean any game where story outcomes are dictated by playing something else well, and that thing has zero twitch gameplay and can be played at your own pace.
3. Games where you build or have other influence over the world you are walking through. The adventure genre to me always has an action-adventure exploration vibe to it, but I like it when gameplay is less static and keeps you thinking as you wander. Picture as a Minecraft world with events in certain areas, so you can build anywhere but need to find the things you are looking for.
4. Something like The Aurora Wager where you refuel and build onto a primary transportation object that gets you to better areas. Most likely with more plot than that game, but not necessarily. Does this count as action-adventure instead of walking simulator?
5. Traditional RPGs with turn-based puzzle-like combat, but also an emphasis on branching conversations. Okay, okay, I don't expect this to be approved, but I have to know where the line is.
I really appreciate any feedback here, as it does affect whether I join or not. I'm much more of a ludologist than an narratologist, so I always like to push the boundaries when I can. :3