Tested at 768p and 1024p. HUD and UI is not optimized for 4:3 or 5:4, resulting in hard to read text and important elements clipping into each other and going off screen.

Non-widescreen support: Excellent. Tested at 1280x1024. Even the menus are properly scaled with no black bars. One small hud element is positioned a bit weirdly in gameplay.

Non-widescreen support: Pretty good. Tested at 1280x1024, menu forces black bars but once in game its fine. UI scales correctly, some things placed a little oddly but it doesn't get in the way.

Non-widescreen Support: Excellent. Everything is scaled and placed correctly. Some text is a little small at lower resolutions.

Non-widescreen Support: Has issues. Tested at 1280x1024, Main menu and some UI elements clip out of the right side of the screen limiting visibility. Some menus have overlapping elements.

Non-widescreen Support: None. Tested at 1024x768, allows selection of 4:3 resolutions, but displays the game with black bars to fit 16:9.

Non-Widescreen Support: Excellent. Everything is scaled and placed correctly. At lower resolutions certain UI elements are a little large but its fairly minor.

Non-widescreen Support: Excellent. Everything is scaled and placed properly. No noticeable issues. Bonus: UI, hud, and crosshair can be individually scaled to your liking.

Non-widescreen Support: Excellent. Everything is scaled and placed properly. No noticeable issues. (Note: Mods that edit/add to the UI may not have proper non-widescreen support)

Non-widescreen Support: Pretty good. Almost everything is properly scaled and placed. Only a small few button prompts and UI elements seem to still adhere to a widescreen display area.