Text based game with a twist. You have your DM who sets up the game like its in a room, with the story, encounters, NPCs, all with an in built app that they can use to check on characters at a tap of a button and update and add notes on. The players then join the room and make their own characters, and can use real dice to sort stats etc or use ingame digital dice. they then begin, with the DM setting the scene, they also choose the general sort of area, town, forest, underground, swamp etc which changes the color and background to match. the players then all get turns to cut in as the text scrolls through and do things, talk to someone attack something, look at something else, anything they want. The DM can then allow it or get them to roll dice to determine sucess or failure. If something changes the DM can note it in the relevant area and continue on. If they run into an encounter the DM can set up a grid and place enemies on it and the players will have their own avatars in and can then use their turn to move and act accordingly and fight like a normal DND game. To speed it up the DM could even record themselves talking instead of typing everything out for the story and the players can play it back to themselves when they have time to play. Would be a mix of TXT and text based game but also with visual cues to help with immersion, if they talktalk to someone then a villager may appear on their screen while they converse, or when they battle they can see the characters moving around
Adventure Cards are put down in randomly so that they connect via markers on the back of the cards. when 25 cards are put down (25 for 2 player, more players means more cards) stop putting the cards down, flip them over to create the map, and at one end put the start card, and the end card at the other. now shuffle the decks seperately for low mid and high threat monsters and place them facedown on any cards marked room. each card is a different monster with different stats and loot drops, the idea is to go through the dungeon to try kill monsters, find better loot and to get to the end of the dungeon. At the end can be random card too from the end card pile, could be epic loot, a strong monster or even an event like escape the dungeon. People choose a player card which has different stats which can be effected by loot found, but also have diferent stats which effect how far they can move per turn or how well the do in fights or other utility abilities. when they enter a room roll a d20, depending on the number draw from the respective pile (1-5,6-10,11-15,16-20) which do different things, 1-10 is generall a fail, 11-20 are pass but all have flavour text to paint a picture of how the adventure is going. Could even have 3d printed pieces like players, loot boxes, enemies room elements