The Solo But Not Alone 4 bundle is available for another week - worth picking up and poking through for ideas. Most of them will be too long or complex, but some are short, and some are group-adaptable.
A while back, I bought a bundle of Lunch Break RPGs - focused on TTRPGs you could play on a lunch break. It's a good starting point to look, although several of the games are longer than that. (RPGs that have expected play times of "30 min to 3 hours" may not be what you're looking for.)
Bite-Sized Dungeon is free (Pay what you want), and requires no equipment - no dice/cards/etc.
Grief of Heart is a solo poem-writing solo game.
Bay Leaf Bouquet is solo or group TTRPG involving necromancy and flowers. But mostly flowers.
Outside of that bundle set: the "I Went To..." series (not actually a series) is worth looking at. I Went to Japan Once is the first, and other people liked it enough that there are now a swarm of hacks of it. They are all solo or co-op storytelling games. They will be very, very different depending on whether anyone in the group has actually been to the location in question. And then people started making them based on fictional locations.
- I Went to Seattle Once
- I Went to West Point, California Once
- I Went To 100 Acre Wood Once
- I Went Through the Stargate Once
- I Went to Wonderland Once
- I Went to the North Pole Once
- we saved this vessel once... (this one's in Solo 4)
Six Figures Under is one of my favorites - you are a modern necromancer who has to figure out how to advertise your services. (Part 1: Write a Craigslist ad without using any of the forbidden terms, like "necromancy" or "dead.")
Gentleman Bandit | Western Cantos I is pricey, as these things go (I got it in a bundle) but delightful. Solo game; you write a 13-line poem based on prompts drawn from a deck of cards.
A Response to the Esteemed Dr. Crackpot is a 2-player writing game; rules are sparse but the premise is hilarious and should be fun for college students.
Previous solo bundles; no longer purchasable as bundles but easier to browse than the whole site - I have all of these (and all the games from Bundle Browser); if there's anything you're curious about, let me know.
(I am working towards a database of the bundle games I've purchased. I hadn't thought to include "medical" as a tag/keyword, but now I will. Sorry I wasn't able to find any specifically medical games.)