I've been running the game on an LG 21:9 screen for a while now, and the game somehow knew to adjust the width of the screen to the appropriate width even though I would choose 1920x1080 for the lack of 2560x1080. However, a recent update "FIXED" the auto adjusting MAGIC and started giving me a bordered game on the sides...
However, I used the trick I've used on other games before, and it's to use this code
-popupwindow -screen-width 2560 -screen-height 1080
You just gotta go your Steam Library, right click Terratech > Properties > "General" Tab > Set Launch Options > Put the above code in!
Luckily enough, the UI elements in this game doesn't seem to go crazy like we see on some other games. Not totally sure about 32:9 though.
Hope this helps some people!
However, I used the trick I've used on other games before, and it's to use this code
-popupwindow -screen-width 2560 -screen-height 1080
You just gotta go your Steam Library, right click Terratech > Properties > "General" Tab > Set Launch Options > Put the above code in!
Luckily enough, the UI elements in this game doesn't seem to go crazy like we see on some other games. Not totally sure about 32:9 though.
Hope this helps some people!