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It works for me on my Mac running macOS 10.13 High Sierra. This sounds like a compatibility issue with macOS 10.14 Mojave.

You need to use an updated version of Wineskin that is compatible with Mojave. I found a thread about it here: https://portingteam.com/topic/11072-mojave-and-wine-versions/.  The updated version of Wineskin is available here: https://portingteam.com/topic/11037-unofficial-wineskin-project/. It is technically unofficial since the official Wineskin hasn’t been updated in several years apparently, it looks like official Wineskin last had a release of 2.6.2 in 2015 while the unofficial is up to version 2.9.0.4 from August 2019.

That should hopefully fix Mojave compatibility. Luckily my Mac is still on High Sierra (it is actually incompatible with Mojave due to old hardware) so I am not affected by this problem and the game works for me.

This unofficial version does have a little downside though. It raises the minimum macOS version requirement from 10.6 Snow Leopard to 10.8 Mountain Lion,  and it is recommended to have macOS 10.9 Mavericks or later with this new unofficial version. But it works better on 10.14 Mojave and 10.13 High Sierra and is more likely to work on 10.15 Catalina.

So I suggest having 2 different downloads, keeping the current one that works without any issues on 10.6 Snow Leopard thru 10.12 Sierra (better for the older versions of macOS), and also adding one with the updated Wineskin that works without any issues on 10.9 Mavericks thru 10.14 Mojave (better for the newer versions of macOS) and possibly might work on 10.15 Catalina. For macOS 10.15 Catalina the entire app needs to be 64-bit and 32-bit software absolutely will not work.