Changed resolution and now can only see 1/4 of the screen

I changed my resolution to 2160x1440 and now can no longer play the game, or access the menus because I only see 1/4 of the screen. How the hell is this not on the “known issues” is beyond me.

I have the same issue. I have a Samsung U28D590D 4K monitor.

To open the game in windowed mode open the following file:
Windows 7/8/8.1
Open your “Documents” Folder browse to “My Games” open “Homeworld Remastered”, right click “LauncherSettings.hws” open with NOTEPAD (or your fav text editor). Change the following from false to true “true” , save. Now run the game and you should be able to change your settings to something else.

Sometimes my game will run at my native resolution, other times it will only show 1/4’ish as if my monitor was too small for the resolution.

Kindly,

Me

This is likely because you have windows DPI scaling above 100% in control panel. I had the same issue with my 4K panel.
I just put the DPI settings back to 100% and took care of the issue. This is due to be patched at a later time.