If you wish for the game to display at native (desktop) resolution but not in Fullscreen mode, you can do so by applying these launch parameters.
If you play on Steam, this is most easily done by setting a Launch Parameter in the Steam Client.
- In Steam, go to your Library
- Right Click on the game title
- Select Properties
- Click Set Launch Options...
- Paste the following line into the provided text box
- Click OK, then Close.
On a PC
- Open a command line window
- Navigate to the folder containing tld.exe
- Type "tld.exe -popupwindow"
- Open a Terminal window
- Navigate to the folder containing tld.app
- Type "./tld.app/Contents/MacOS/tld -popupwindow"
You can also launch the game in Borderless Window Mode via the tld_borderless.bat files located in the same folder where the regular game exe is installed.