I doubt it’s the second thing because for an obscure game like this that at some point became free, most uploads on the internet are probably the same. But I will try a different one if the first option doesn’t work out.
Speaking of it, could you provide a more specific instruction or a proper package name for me to install? Because I tried searching for “multilib” and “32-bit libraries” and I doubt any of the ones I found were what I need, but I can’t tell it all looks pretty confusing.