When running Factorio 0.16.X on a single core [Linux] system, it will crash when I try to open the graphics options.
Probably there is a small bug in the slider creation for the render thread count field.

Steps to reproduce:
1. Find a single core system. On Linux you can disable all but one cores ...

My querstion to the factorio dev team:
Is there a special reason for supporting DirectX explicitly if OpenGL works great on
all supported platforms. Is there a benefit?

Also i would suggest to support the minimum required DirectX/OpenGL version.
Because as i see your game just does 2D graphics ...

And fixed with 0.16.6, thx

I have a reproducable crash on my savegame. When i reconnect the energy networks with a power pole, the game crashes.

Steps to reproduce:
1: Load the attached Savegame
2: Place the big power pole in the edge of the belts (Map position: 220, -91)
3: Crash