Having read complaints from some people here about having to install dependencies for things (although it really isn't that hard...), I've made a meta-package for conveniently installing most additional libraries that are likely to be required. Download it here
(this is for Mint 19.x/Ubuntu 18.04 LTS)
This will install the dependencies listed on the store pages of a number of games here (I didn't check every game as there are far too many but they tend to use the same/similar selection of libraries), Wine's dependencies (Wine itself will not be installed), and the ia32-libs meta-package.
If anyone finds that any additional dependencies are required after installing this, let me know & I'll see about adding them too :)