Adventurers plops, ripe for the grabbing

-A "roguelike" adventure but after the player-character dies, the next player-character shows up at the exact time the first player-character showed up and can interfere with the first player-character. And the same thing for all future player-characters, all of them are additions to the first timeline. It's possible to prevent a previous player character from dying (as quickly) by altering the timeline this way, and it's possible to recruit the "rescued" former player-character into your party. And of course, this being "roguelike"-inspired, this is necessary to handle some otherwise impossible situations.

-An adventure taking place in a fantasy setting where most to all monsters and mystical races are arbitrary combinations of a thing from D&D and a meme of some sort. For example: Doge Wraith, TROLOLOL (a troll in the D&D sense with a "U mad bro?" face that spews trolly things from its mouth).

(I actually briefly did both of these at the same time once but they work individually too.)