The game uses a custom steam_api.dll using probably an obsolete version of ISteamUserStats. (strings suggest STEAMUSERSTATS_INTERFACE_VERSION002). The calls for example to presumably GetAchievement ...
When I was creating a demo using Visual Studio 2022 with Steamworks.NET, and targeting the output for Windows x64. I manually added \Steamworks.NET-Standalone_2024.8.0\Windows-x64\Steamworks.NET.dll.
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