Rocket League - ShellExecuteEx fails with "Bad EXE format"

Hiya, as per title, trying to run Rocket League results in the following error:

ShellExecuteEx failed: Bad EXE format for Z:\home\xnefas\.local\share\Steam\steamapps\common\rocketleague\Binaries\Win64\RocketLeague.exe.

ShellExecuteEx failed: Bad EXE format for Z:\home\xnefas\.local\share\Steam\steamapps\common\rocketleague\Binaries\Win64\RocketLeague.exe.

ShellExecuteEx failed: Bad EXE format for Z:\home\xnefas\.local\share\Steam\steamapps\common\rocketleague\Binaries\Win64\RocketLeague.exe.

ShellExecuteEx failed: Bad EXE format for Z:\home\xnefas\.local\share\Steam\steamapps\common\rocketleague\Binaries\Win64\RocketLeague.exe.

I imported the game after downloading it from Steam to avoid redownloading it, if that's of any help. If possible, I'd like to avoid redownloading the game.

Sugar-lastPlay.log3.94KB

nursing-lime•2/21/25, 3:46 PM

"name": "Wine Default - wine-9.0","name": "Wine Default - wine-9.0",

HeroicBotAPP•2/21/25, 3:46 PM

Wine-GE is rather old now (last release is almost a year ago) and thus might not work correctly. Please follow these instructions on using GE-Proton with umu instead:

Head to the Wine Manager in Heroic, click the "Proton-GE" tab, and install "Proton-GE-Latest"
Enable umu in "Settings" (Heroic sidebar) -> "Advanced" -> "Use UMU as Proton runtime"
Note: For a visual guide, see attached image
Head to the settings for your game(s) (icon on game card in library). In the "Wine Version" dropdown, select "Proton - Proton-GE-latest"
Rename your Wineprefix (path is shown in game settings), e.g. from current-namecurrent-name to current-name_bakcurrent-name_bak. To clarify: Rename the actual folder on your hard drive, do not change the option in the game settings.
Note: This will make game-specific configuration data (e.g. in-game settings or save files) unavailable. If this is an issue, let us know & we'll help you restore them.

nursing-lime•2/21/25, 3:47 PM

also, why is it installed into Steam's folders? /home/xnefas/.local/share/Steam/steamapps/common/rocketleague/home/xnefas/.local/share/Steam/steamapps/common/rocketleague

spotty-amberOP•2/21/25, 3:47 PM

I imported the game from Steam, with the Import Game button

nursing-lime•2/21/25, 3:47 PM

Just run it from Steam then

nursing-lime•2/21/25, 3:47 PM

Steam and EGS builds aren't the same

nursing-lime•2/21/25, 3:47 PM

if you want to use Heroic, use the EGS version of the game

spotty-amberOP•2/21/25, 3:48 PM

I can't play with my friend running it from Epic Games if I run it from Steam

nursing-lime•2/21/25, 3:48 PM

then redownload the Epic version. it's free

spotty-amberOP•2/21/25, 3:48 PM

Ah, so I have to redownload it regardless

spotty-amberOP•2/21/25, 3:48 PM

Yeah just didn't want to make my friend wait even more

spotty-amberOP•2/21/25, 3:48 PM

Thanks for the info, will update / close the thread once I have the EGS version downloaded!

nursing-lime•2/21/25, 3:49 PM

I thought cross play was enabled for the game as well

spotty-amberOP•2/21/25, 3:49 PM

Also, which Wine version is recommended? I thought I had the Proton 9.25 version running

nursing-lime•2/21/25, 3:49 PM

GE-Proton9-25 or more generally GE-Proton-latest

spotty-amberOP•2/21/25, 3:50 PM

I'm on NixOS managing my Proton and Wine versions manually with ProtonPlus, not sure I have GE-Proton-latest as an option
Update: I didn't see the Wine Manager tab in Heroic, nevermind that!

spotty-amberOP•2/21/25, 3:51 PM

I do have GE-Proton9-25 though, so I'll try with that and update the thread accordingly. Thank you for the quick response and support!

Rocket League - ShellExecuteEx fails with "Bad EXE format"

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