Post by KombatWombat in Didnapper 2 - Overkill 2 Mod comments

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I've actually gotten my modded game running successfully on steam deck before. Like you, I added it as a non-steam game. The key to success in my case was changing some proton compatibility settings, try seeing if switching a different version of proton in your settings for the non-steam game will allow it to launch.

dragoonnight241 days ago

Thanks for replying! So I tried that a few times, and even made sure to install the game internally, but I kept getting the same "Error Uncaught Error: Header is Wrong" warning over a black screen every time the game boots up, then it just stays stuck on that until I close it. Do you have any idea what the "header" may be referring to?

KombatWombat241 days ago

I'm not sure, I don't think I've ever encountered that error on steam deck, but I think I've seen people get it on windows if their game was out of date. It might be worth reinstalling the whole game, in case some files got messed up somehow during some updates.

KombatWombat241 days ago

alternatively, if you have a windows device and are able to install the mod on there, you should be able to just copy over the whole modded install folder over to your deck and then add that as a non-steam game (without having to actually patch the game on your steam deck).

itch.io

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