Games

Get yourself Broken Sword Reforged and chill

If you don't mind something older, both Star Wars Knights of The Old Republic games can be played only with mouse. It's bit clunkier than also using a keyboard, but doable. I used to play them like that while smoking many years ago.

With the exception of chat, try Old School RuneScape. Good game for passive gameplay as well as more intensive/focused gameplay.

Backpack Battles! Fantastic little inventory management game with a load of replay value.

Peggle Deluxe and Peggle Nights are awesome mouse-only (except typing name i think) casual games!

https://store.steampowered.com/bundle/15495/Peggle_Pack/

There is no game: wrong dimension

There might be some keyboard moments iirc but they’re not intense and you can let the mouse go iirc

This game needs more love

Slay the spire

Stardew valley with the mouse move mod /hj

Or bloons tower defence :3.. I've gotten a lot of gaming hours out of btd5

My random suggestions right now for stuff I like and is played with mouse would be:

• Rimworld. Almost any top-down PC management or (not too fast paced) strategy game should work, but, I really like the crazy random shit that happens to the characters you're slowly getting to know in Rimworld.

• Almost any of the Zachtronics games, if you like to torture your brain. Open-ended sort-of-engineering puzzles.The bigs ones like Spacechem, Opus Magnum and Shenzhen IO in particular, last call BBS for a bit more variety inside one game. Not Infinifactory, since while it doesn't have any kind of fast paced action it still requires navigating in 3D so mouse only wouldn't work.

Give Kingdom of Loathing a try.

Get a giant D-pad for one of your feet to use for wasd

Age of Empires, XCOM, Cities: Skylines, Divinity Original Sin 2, Starcraft, +1 for OSRS.

kentucky route zero

If you want an alternative to Slay the Spire i can recommend Monster Train; you mainly summon different Hellspawn and cast spells, which gives it more of an Magic the Gathering feel.

If you want an ARPG fix and have thumb buttons on your mouse you can try Chronicon, don't let the gfx stop you, it's an excellent hack&slash game, and you can put all your skills onto 1 button if you like - i use the middle and the right button for most builds and thumb keys for pots

If you want a new spin on Darkest Dungeon, give Iratus - Lord of the Dead a try. Or if you played a lot of Darkest Dungeon and want more of it, try Black Reliquary, a huge (and free!) mod with a lot of new mechanics!

Going into the same direction as Into the Breach is Shotgun King - the final Checkmate. It's really fun and the higher difficulties really make your brains work out. Workshop support with lots of extra content included! Also great for Turn-based Tactics is Invisible Inc., putting you in control of an spy agency which has been hit hard and tries to recover.

For arcade games i can recommend Utopia must fall - it really captures the spirit of old arcade games, but feels real fresh. You can also go for Nova Drift, which is also an excellent arcade game.

Then there is Cultist Simulator and its spiritual successor, Book of Hours. It's basically a card based riddle game, and very atmospheric.

There is always Shattered Pixel Dungeon - it is also available on Steam or Gog, but you can download and play it for free from the link i provided.

I think your collarbone might have healed until you've finished that list, have fun!

Uow about some visual novel style games like 999, Hotel Dusk (DS emulator), Ghost Trick, Professor Layton (DS emulator or mobile)