Steam Deck

Except for a cheap stand I bought on Amazon, I don't use any accessories. My steam deck is either docked to my monitor or used in handheld mode. When docked, I use it mostly in desktop mode with mouse and keyboard. I use the same setup with my laptop from work when I work from home.

Dock for playing on a large screen paired with a Google Stadia controller.

For my smol hands, the Skull & co back button extensions.

A 2m USB extension cable. I know it's supposed to be bad but it's unusable without one. And it hardly ever catches on fire.

Killswitch case from dbrand and the official dock

The ones I designed and gave away: https://twystlock.com/ 😉

Specifically, the wall mount and belly stand.

I've got something I can only describe as a "gamer's breastfeeding pillow", it's a sort of U-shaped pillow which you rest your arms and Deck on. Handy for a long play session if your arms get tired.

Wired headphones. They dont ever need a charge and they make the content more immersive

Before mine started to have problems and I had to send it in for repairs, I would definitely have to say either my dock or 3rd party switch controller, if that counts.

With the dock, official, I knew I had something I could use to just plug into a TV and call it good. Allowed me to go through Dead Money in New Vegas on the TV in my room, so I could have a better view of what was going on compared to the tiny screen.

And if the controller counts, I absolutely love using it in general even if I'm not playing games because of the headphone jack at the bottom that allowed me to be up in the middle of the night, listening to music (either in game or on desktop mode) without having to worry about the apartment above or my family hearing what I'm listening to. It's USB too, so no battery to worry about when I had my deck docked, especially since I'm not a big bluetooth fan and only use it pretty much when absolutely necessary.

When I'm using it handheld, my favorite accessory is a pair of 2x magnification reading glasses. Blows up the screen, and makes it very nice... super easy to see everything.

But I'm in my 40s with bad eyes, so YMMV.

Right angle USB-C adaptors to change the angle of the charging cable.

USB-C Y cable to connect power and external SSD at the same time.

External USB-C SSD:

https://www.kingston.com/en/ssd/xs2000-portable-usb-c-solid-state-drive?capacity=2tb

The Mechanism Deckmate, mostly with the Kickstand attached.

I also use it to attach a portable battery and the Kickstand to find comfortable gaming angles and while I'm charging it.

Other than that, I've got a pair of KSC75s to wear when I need them (I mostly just play my games muted anyway) and I guess the hall effect Gullikit sticks might count since my left stick developed drift.

In order of frequency of use with my Deck:

My most used accessory is a hoodie with the single front pocket. The Deck fits in this pocket and is great to carry around the house. Doesn't fall out or anything.

Thick stick-on rubber button covers for the back buttons that make them far easier to press.

Deckmate. I primarily use this with a DIY phone holder to attach my phone.i watch movies while gaming in a dark room waiting for my son to fall asleep every night. Also great for the kick-stand, but I don't use that much.

A barrel connector to USB-C converter to turn my laptop charger into a 65W USB charger at my desk so I don't need to have multiple chargers and cables lying around. I also have a super small GaN dual port USB-C charger for travel. I would also recommend buying a bunch of used (branded) USB-C laptop chargers from eBay if you want multiple chargers scattered around the house.

Tomtoc carrying case.

My Synology NAS for easily transferring files to the Deck from other devices and for auto-backup of save files from emulated games using Syncthing.

90 degree USB-C connector along with a generic USB-C laptop dock. Extra long USB-C cable.

My hitbox controller for street fighter.

The Steam Link app on the PC to work as an instant remote access app to the Deck. Works great for setting things up (i.e. emulators) in desktop mode with the KB+M and screen shared to the large monitor.

Guitar hero controller......yup this still gets some use and is fun with the family.

Dualshock 3 controller (works natively with Deck Bluetooth connection).

PD power bank.

There are a number of options I haven't explored. I haven't touched anything on the inside of the Deck. You can get a bigger NVME drive or hall effect joysticks or a new shell. You can also get vinyl stick on skins for the outside. You can get all sorts of other mods. You can get to really significant surgical mods.

My Deckmate with the kick stand. I'm bedbound and it even works to prop it up on my tummy.

Chinesium-silicone aloy case against sweaty palms

One if my best gaming investments

The Deckmate, super easy to play with portable batteries attached to the back.

This soft grip from Skull & Co. because it lets the deck stand up on its own.

https://skullnco.com/collections/steam-deck/products/gripcase-sd-for-steamdeck?variant=45605322948900

I’ve got a 360 controller dongle thing that lets me use my old 360 controller as a gamepad.

I just love the 360 controller lol best controller ever made.

My 8bitdo controller while I wait for my steam controller 2. And my evergreen charger so I can have an extra long cable while playing handled on charger.