The installer is notoriously buggy on Linux (often showing no images/text). If possible, install on a Windows PC first and to your Steam Deck. Note on Multiplayer
Legitimate software developers often sign their binaries. Checking the digital signature ensures that the code has not been altered by a third party since it was published. Conclusion
Third-party installers can be registered via kaoskrew plugin add my-installer and then used as:
What or code are you seeing (e.g., ISDone.dll , unarc.dll )? At what percentage does the installation stop? Is this a new issue or has it worked before? I can then tell you exactly which step to try first. games will not unpack - KaOsKrew