It took me a while to understand that, but the crash is actually due to a symbol conflict between the old game binaries and current libstdc++.so.6.
Patched binaries are available here: https://downloads.dotslashplay.it/games/neverwinter-nights-1/ And the explanation about how they have been patched: """ The original binaries nwmain and nwserver have a symbol conflict with modern libstdc++.so.6. patchelf has been used to patch the binaries and rename the conflicting symbol (__dynamic_cast). Big thanks to Phil Morrell, who used a similar method to patch Unreal Tournament libraries. Without their work I would not have known how to fix this. """ I suggest closing this bug report, especially now that we know that this was not really related to libgl1-mesa-dri in the first place.
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