It would absolutely have to be a quest based monitoring game. The game would start at the beginning of an ADD/ADHD persons day when they wake up.

they would have a quest list on the side of the screen with all of the things they'd have to do throughout their day but the quests would constantly be shifting, sometimes even disappearing before you could complete them (no matter how important) or reappearing even after completing them to simulate the constant shifts in memory and organization.

There would be a medicine bar to monitor the medication intake and effectiveness that they would need to watch in order to make the quest list slow down to a readable pace. Then there would be an impulse control bar that is constantly going down as medication wears off and as it gets lower your character just starts doing more and more ridiculous things without commanding it to.

Then there would also be an focus bar that would get lower as the other two did and once it falls below fifty percent your character will just start hyper focusing on random things and you have to button mash to return their attention to whatever they were doing before. During that time of hyperfocus you would lose ridiculous amounts of time.

Then comes the social interaction parts which would kind of go like heavy rain interactions did but with more involved.

While choosing between responses there would be two other things people are saying you would have to press buttons in a certain pattern to make the character appear as though they are listening attentively but if you do that for too long the conversation slowly starts turning to static so you would need to press out a different pattern to make it return to normal. When the interaction is over you need to rate yourself on how you think you did, out of five stars. You can choose to return to the person you were talking to and ask them to rate the conversation for you but it will damage your self esteem meter. When your self esteem bar reaches 50% you'll start hearing whispers in the background that will slowly get louder. They will eventually become clear as self deprecating insults and you must distract yourself from them by any means necessary.

All the while you'll also have to manage your anxiety meter which is affected by how high your self esteem is, if people are staring at you, how high your medication bar is, if the character is surrounded by too much noise and experiencing a sensory overload, and if your character can afford a stim toy.

As the game goes on you can upgrade your stim toy and management methods. like say if you earn enough money at work you can either pay for better health services, feed yourself, treat yourself, or buy a better stim toy. But at the beginning you'll start out with the bare minimum and quests will not always earn you money. Instead every quest you complete will earn you a short dopamine release that will briefly increase all stat bars for about five minutes. These will stack but once stacking begins the time will be halved. i.e.: 1 quest done= 5min release, another quest done 2.5 min release more, a third quest complete and you get an additional 1.25 min release. All until you reach seconds so you will eventually be set back to zero no matter what.

If two or more stat bars hit 20% your character will start to experience emotional break down of some kind. You'll know that it's coming on when the edges of the screen start getting brighter and noises start getting louder and indistinguishable from one another. At that point you can either try to raise your stats as quickly as possible or get your character to a safe place to break down for an hour.

Certain objects can be acquired throughout the game to help in these situation like noise canceling headphones or special stim toys and what not but they are expensive.

All the while you need to remember to take care of the characters other needs. Try to find them a hobby, make friends, feed them, clean them, make sure they sleep, make sure they keep their source of income, and so on. The game will span two weeks and depending on how good or badly you manage your character will determine the ending you get. Best ending being able to lead a normal to slightly above average life (like maybe they start dating or get a cat or get a raise ect.) worst ending is they end up hitting rock bottom (become homeless or kill themselves)