Hi The_GD Interinactive dop2000

I'm having same problem here and maybe some of you know the solution:

The problem is on SteamDeck (probably SteamOS/Linux).

I'm using Greenworks 0.82, NW.js 0.82 and Steamworks SDK 1.58, and when I launch the game through Steam app (Both Gaming mode or Desktop mode) only appears a NW.js screen.

But otherwise, on Desktop mode, if I go to the folder where Steam installs the game (usually “Common” folder) and click on the executable directly, the game runs perfect, even Steam achievements work (but not the overlay).

Of course I added the 2 files for Linux 64 “libsdkencryptedappticket.so” and “libsteam_api.so”. Also I tried to put them inside the package.nw, outside in the main folder, inside Lib folder... All places, but nothing works.

Is there any other file to add? Am I missing something?

Thank you for your help.

Yes, there is. You need to create .txt file, call it "steam_appid.txt", add your steam game id number (7-digit number, can be found on steamworks parter site right next to your game's name) and put it in the same folder as your app file.

Let me know if that helped!

PS: I've mentioned it in my post above, you might have missed it.

Yes, I did. Saves made during testing your project online in Construct 3 ("Play") are saved based on your browser. For chrome: C:\Users\USERNAME\AppData\Local\PROJECTNAME\User Data\Default\Local Storage\leveldb

For nw.js export the path is always the same, since nw.js uses Chromium (chrome browser sub-engine). It can be located here: C:\Users\USERNAME\AppData\Local\PROJECTNAME\User Data\Default\IndexedDB\chrome-extension_ccnecbdlmggdebaobiodilckckknoohl_0.indexeddb.leveldb

The last part with some unrecognisable pattern of letters, seems to be generated based on your project (name, possibly). To easily get to Appdata simply write %appdata% in your windows explorer (since appdata is usually hidden for users on most pc's).

The main file that is being save is called "00003.log", all the data you're trying to save via Local Storage is being saved there. One problem is - each time you save - this 00003 file will get a bit bigger. That's because Local Storage does not seem to rewrite saved data - it is adding new lines in the document and Construct 3 uses the last "save" (hence - the file is getting new information and is getting bigger each time the save is done; in my example - about 60 kilobytes of data is added each time).

Another important thing is: after "00003.log" get's to around 1Mb, it creates "00004.log" in the same folder and starts to write there instead (same with 00005, 00006, etc.). Each file contains a a lot of saves though (about 70 in my example) so I would not worry too much about the size of the file, unless your game saves like every 1 minute.

So instead of saving just 00003.log, I recommend to save the whole folder containing it (and other 0000X+.log files) in Steam Cloud by using the "*" instead of the exact file name to save. Worked for me.

PS: Oh, yeah. And this save location is the same for your demo-version, so it's best to sync demo-version and full-game saves in Steam if you want the players that tried out the demo version to continue playing from the saved spot in the full game.

Issue submitted

https://github.com/Scirra/Construct-bugs/issues/7034

Today, I will spend most of the time trying new ways to export it. Removing things, adding things, and seeing if I can pinpoint what causes it to crash / hang.

UPDATE: managed to launch my game via a specific Linux build! It WORKS!

Here is what I did:

0) Download Greenworks addon for Construct 3, install it and put Greenworks object in your project Object types.

1) Make a build via NW.js exporter. Choose NW.js version v0.71.0 (Chromium 108), Linux64 as a target platform. Options on: Package assets, Compress final zip, Resizable window, Ignore GPU blacklist, Export for Steam (everything else - Window frame, Kiosk mode, Enable DevTools - off). Command line options - nothing.

2) Unpack the .zip build using WinRAR.

3) Download the Steam SDK 1.50 from here: partner.steamgames.com/downloads/list

4) Copy the libsteam_api.so from "sdk/redistributable_bin/linux64"

5) Copy the libsdkencryptedappticket.so from the "sdk/public/steam/lib/linux64"

6) Create steam_appid.txt file and put your Steam application number in it (only the number, nothing else)

7) Put all three files in the main build folder (near lib, locales and swiftshader folder). I did not figure out if libsteam_api.so and libsdkencryptedappticket.so need to go in the main build folder or in the "lib" folder, so I've put all three files in the "lib" folder of the build as well - just to be sure the files will be found by the game.

8) Make a new .zip file of the main game folder (not the upper-folder itself, but all the lib, locales and swiftshader folders and files to be on top of the zip archive)

9) Upload it to Steam. You may use a beta-branch for testing - it doesn't matter, just don't forget to enter your beta-code and use the correct branch if you're using your other branch.

10) In SteamWorks site go to App Admin > General Installation Settings. Make TWO different launch options - one for Windows (Executable ending with ".exe", Operating System > Windows), and a separate one for Linux + Steam OS (no file type there - only the game name, needs to be the same as the game name file in the game build folder).

11) In SteamWorks site go to App Admin > Application > General and tick "Supported Operating Systems" on both Windows AND Linux + Steam OS.

12) Don't forget to publish all the changes and delete your previous downloaded builds if you tested any. And do that every time you try and change anything.

If you have any additional questions - write to me, and I can check again all my steps again and maybe help to find out why it's working on my game and not yours.

Issue submitted

https://github.com/Scirra/Construct-bugs/issues/7034

Today, I will spend most of the time trying new ways to export it. Removing things, adding things, and seeing if I can pinpoint what causes it to crash / hang.

Thank you so much! Please, leave a message here if you find anything. So far I wasn't able to launch my game on Steam Deck =/

Hi. I've uploaded the build (made via Nw.js) of my game made on Construct 3 to Steam, everything works fine on PC, Windows. But then I tried turning the game on Steam Deck: the game starts to launch (steam deck loading-circle logo is shown) and after a few seconds the game just crashes with no error message and leads me back to starting a game Steam menu.

I've thought that the issue might be that I did not inclue Greenworks addon in it and did not use "Export for Steam" options while building for NW.js. So I've tried adding Greenworks-0.71.0 to the project and building the game with it. Then I added steam sdk files (steam_api64.dll and sdkencryptedappticket64.dll) to the build, as Greenworks plugin asks. I reuploaded the build to Steam and tried launching the game again on Steam Deck. Now the game does not crush, but loads it indefinitely (forever).

Please, anyone who has Steam Deck, reply if you had similar issues and especially if you know how to fix them. Thanks!

Additional data:

- Construct 3 Release r336 stable

- Greenworks-0.71.0

- Steam SDK 1.50

- Additional addons used in the project: Animate_Text, Csv2array, RimLight (don't think it's the addons fault though)

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UPDATE: If you have this issue look down on my next comments to see instructions on how to try to make your game work on Steam Deck.

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Interinactive

Thanks for the tips. However, I'm having trouble even getting the game to run. Did you have this at first? Did you have to upload a specific build to get it to work on the Steam Deck?

On mine, I've uploaded a Linux version, but when I try to open the game it flashes up for a second before quitting instantly.

Found this thread through Googling this issue, and you're the only one I can find using Construct 3 and a Steam Deck.

Same here. Can't make my game work on Steam deck (tried even with compatibility modes - Proton Experimental and Ptoron 8.0-2 - the screen flashes at the start and diees.

If anyone had this issues on Steam Deck and managed to fix them - please reply! Thanks!

UPDATE: adding Greenworks plugin and Steamworks SDK files into the build .zip file as Greenworks requires to made my game not simply die on Steam Deck, but load indefinitely (forever). Not sure if it's better or worse =/