You might still need to install DirectX, which is a graphics driver. You can download the necessary driver for free with this link: https://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=35
Thanks! I just did, but the error persists—but I'm running it with wine (took a bit of a gamble here). I installed d3dx9, d3dx10, d3dx11 with winetricks, and added them as libraries with winecfg, and I'm using wine 5.22. So that might be a bit outside of the realm of the help you can offer, but if someone has got one of your games running on wine, I'd gladly take their configuration.