I discovered an HDMI multi viewer to display two steamdecks simultaneously on the same screen

Hey r/SteamDeckTricks!

I've been working on something I think this

community will appreciate — a fully automated

installer that sets up a complete offline WoW

private server on your Steam Deck using

AzerothCore and Docker.

Here's the trick part:

🎮 GAMING MODE SETUP

Added as a Non-Steam game via Konsole.

Launches the server, waits for world to

initialize, tells you when it's ready, then

AUTO-SHUTS DOWN the server the moment you

close WoW. Zero Desktop Mode after initial

setup.

⚙️ ONE COMMAND INSTALL

chmod +x install.sh && ./install.sh

That's it. The script handles everything:

✅ Detects SteamOS automatically

✅ Installs Docker via pacman

✅ Clones AzerothCore

✅ Installs AI bot and progression modules

✅ Creates your account

✅ Builds the Gaming Mode launcher

🔧 WHAT YOU GET

✅ Full WotLK 3.3.5a server — offline forever

✅ 500 AI bots for dungeons and raids

✅ Individual progression Vanilla → WotLK

✅ Living Auction House economy

✅ 60fps in Gaming Mode

✅ Launches in under 1 minute

Full install guide showing every step:

▶️ https://youtu.be/GVUVnngY93I

Free installer on GitHub:

📦 github.com/DadsMmoLab/dads-mmo-lab

Happy to answer any technical questions —

this community has already helped make the

installer dramatically better through bug

reports in the past 48 hours.

More games coming — same approach, same

one command install. Monster Hunter Frontier

is next. 🐉

Fed up of placing my Steam Deck on the floor or balancing it on a crowded bedside table. Couldn’t find anything that provided a good secure hold without being ugly, so I designed my own.

Find it here, if you want.

Edit: Guys, before raising concerns, asking questions, or pointing out the glaring design flaw you’ve just discovered, please have a quick look through the photos and MakerWorld description first.

There’s a reasonable chance I also noticed it while designing the thing.

Just got back from PAX East where I ran a 4-station booth — 2 laptops and 2 Steam Decks (one OLED, one LCD) — and honestly didn’t expect this, but the Decks completely outperformed the laptops when it came to pulling people in and getting them to play.

Here’s what I learned from running both Decks for 9+ hours a day across 4 days while hundreds of strangers played them:

✅ What Worked Better Than I Expected

• People always picked up the Decks first. No hesitation, no questions — they just walked up, grabbed one, and started playing. It made the booth instantly more approachable.
• Both Decks held 60fps all weekend. Unity game with farming, pets, quests, UI layers, weather — only crashed twice total. No overheating. Rock solid.
• Travel was super easy. Both Decks, 2 docks, cables — all fit in one backpack. No need to ship heavy PCs or monitors. Absolute lifesaver.

⚠ Stuff I’d Fix (or Already Did)

• At a previous event over a year ago, I had one Deck flat-docked and barely anyone noticed it. Since then, I picked up proper docks on Amazon and elevated both Decks for visibility. Made a huge difference this time.
• USB-C cables were an issue at first. People instinctively pulled the Decks toward themselves. I started with the short stock cables, but switched to longer ones by Day 3 — that fully solved the problem. I kept both Decks plugged in all day unless someone wanted to sit farther back, and in those rare cases I’d unplug and hand it to them.
• One Deck had a stiff bumper. Didn’t catch it until a few players visibly struggled with it. Now I’ll always test all inputs ahead of time.

🔍 Random Surprises

• Caught a controller bug just by watching people play. Something I completely missed during internal testing. Live use exposed it instantly.
• Kids played 30–60 minutes straight. Some came back the next day. The Deck made it feel casual, familiar, and low-pressure.
• Adults hovered around the Decks more than the laptops. The form factor just naturally pulled them in — something about it felt more inviting.

💬 Final Thoughts

I didn’t expect the Steam Decks to be the MVPs of the booth, but they absolutely were. They ran solid for 4 days straight, constantly drew people in, and helped me catch bugs and friction points I never would’ve seen otherwise.

If you’re demoing publicly or running long sessions, bring at least one Deck. Even just observing how people naturally use it will give you insight into your game’s real user experience.

Happy to answer anything about how I set it up or what I’d improve. Anyone else here ever run public demos with Decks?

How to mod your games.

All of this happens in Desktop mode, of course.

For a handful of games, there are Linux native tools, like Scarab for Hollow Knight, hephaestus/modmanager (run hephaestus first) for Hades. They should work properly without additional setup.

Generally, adhere to the instructions coming with the mod, like file locations or other usage hints.

When unpacking the files on the Deck directly using "Ark", click the "Extract" button, then make sure "Preserve paths when extracting" is seletected in the options on the right, before clicking OK.

Direct file replacement

• Open Steam, select your game. Right-click it, Manage, Browse local files.
  • Alternatively, open Dolphin and navigate to /home/deck/.local/share/Steam/steamapps/common (or /run/media/mmcblk0p1/steamapps/common for MicroSD) and find the game directory there.
• Copy the mod files to the correct location for your game and overwrite existing files if asked.
  • If there were .DLL files among the copied files, check the section "DLL Loaders" below as well, else the mods will not work.
• The mods should work as usual then.

Mod Loaders/tools

Some mods patch the executable and many mod loaders only need to run once to setup everything if you found your final mod configuration. Here's how to run them.

• Copy the mod loader to the appropriate location (game directory (see above) especially for patchers, a directory in your home directory, or wherever the instructions coming with the tool say).
• Bottles from Discover store turned out to be the easiest way for me to launch the mod loader/tool. Launch Bottles and open the bottle for the game you want to mod.
  • Install Bottles and Flatseal from Discover.
  • Start Flatseal, select Bottles. Scroll down and select "All user files".
    • If you have a MicroSD, enter into the box right below "All user files": /run/media/mmcblk0p1.
  • Start Bottles, go to Preferences, scroll down to Integrations and select "Steam Proton Prefixes".
  • After restarting Bottles, your installed games should show up as Bottles on the "Your Bottles" page in a "Steam Proton" section.
• Select a game, dismiss the "Missing runner" message, we don't care.
• Click the big blue button Run Executable..., navigate to the mod loader or patcher and click Run. The tool should now run as usual.
  • I'll update this on how to create a permanent link to the mod loader so it runs within the wine prefix in case you need it more often. Alternatively, SteamTinkerLaunch allows running a command inside the wine prefix as well.

Depending on the game's modding mechanism, the next step may be required in addition.

DLL Loaders

Several games initiate mod loading by adding a DLL (usually dinput8, d3dsomething) into the game directory, basing on the fact that Windows first loads DLLs in the same directory as the executable, then the ones in the system. Wine does not do this by default. Instead we have to tell Wine/Proton to override the builtin DLL with the "native" one we provide.

Easier way, thanks to majinavelli: Add a launch option to the game

WINEDLLOVERRIDES="dinput8.dll=n,b" %command%, replace dinput8.dll with the DLL(s) you want to load. For multiple DLLs, separate them with , like this "dinput8.dll,d3d9.dll=n,b". Also note capitalization is important.

​

• Launch Bottles and open the bottle for the game in question.
• Open Legacy Wine Tools, then Configuration. An old style Windows dialog opens.
• On the first tab Applications, click Add application. Navigate to Z:\home\deck\.local\share\Steam\steamapps\common\<Game name> and select the game executable, confirm with OK.
  • The .local directory will not be visible in the file browser. Navigate to Z:\home\deck, then manually type .local into the File name box and hit Enter, then continue navigating. Or type the whole path out :P
  • Replace <Game name> with the directory where your game is located.
• Back in the Application list, make sure the executable you just added is selected.
• Below the Add application button is a Windows Version selector, set it to Windows 10 for most games.
• Open the second tab Libraries.
• In the dropdown New override for library, select the name of the DLL you want to add, eg. dinput8, and click Add. It will appear in the list and should say (native, builtin) next to the name. Confirm with OK until you are back in the Bottles UI.
  • native is the one you provide, while builtin is the one Wine offers.
• Now try launching the game and the mods should load properly.

I first tried this with Protontricks, but always received some cabextract error, so I chose this route instead which worked perfectly for Yakuza: Like A Dragon: Copy all mods and the loader to the game directory, Run Executable to run the mod loader/compiler, and add the included DLL to the overrides.

​

Additions, tips and whatever that I can add are welcome, just like someone posting the command to run an executable via wine in the correct prefix to add a shortcut/Non-Steam Game to the mod loader/manager before I have the time to search for this ;)

I made an article about the process to check out

Hey y'all. After my weird crash out about my post getting deleted from r/Steam deck yesterday, there seemed to be a lot of interest in the game so here's a guide to getting it set up.

You may have to run the game once before following.

1. Go to the project Rome website (linked below). Download the zip file and create an account. Use a short easy password, auto login and save password are a bit broken in the game, you may have to type it every time.

https://veniceunleashed.net/project-rome

1. Extract the zip file to the root of your BC2 install folder. If you have the game on steam this will be;

Home/local/.share/steam/steamapps/common/Battlefield Bad Company 2

1. Add the following launch command to the game;

WINEDLLOVERRIDES="dinput8=n,b" %COMMAND%

1. There are various community layouts available. "BC2 like at Xbox" was recommended earlier. It's ok, definitely needs some tweaking.

That should be it. Run the game, log in and go to the server browser (matchmaking does not work). Remember to click search to populate the server browser.

If you don't have BC2 on steam, project Rome will work with the game from any source as long as it's fully updated. Your install location will be different and you'll have to force compatibility.

BC2 is abandonware at this point so, again, ANY source for the game will work.

I love using not just games on the deck and adjusting desktop layout was a gamechanger. This has been said before, but for anyone who didn't know, this was BIG for me.

I just wish the on screen keyboard wouldn't be so slow, anyone got an tricks? I surely could type as fast as on my phone with double trackpads, but it's laggy and just can't keep up.

Anyways. Mouse and shift/tab/ctrl etc. Are 90% of what I need most of the time.

Useful Tools and Resources for getting your Steam Deck setup.

Table of Contents

Steam Deck

Accessories

• Docks
  • USB-C Adapters
• Cases
• Skins
• Bootup Animations
• Controllers
• Screen Protectors
• Storage
  • MicroSD Cards
  • SSDs
• Power
  • Chargers
  • Batteries

Getting Software

Operating Systems

• Linux
• Windows

Games

• Steam
  • Proton
• Lutris
• Bottles
• Other Launchers
  • List of Other Launchers
• Game Streaming
  • Cloud
  • Local Game Streaming
• Emulation
  • Emulators
• Android

Software

• Discord
• Plugins
• File Transfer
• Backups