How do I change the in-game resolution from 800×600 mode?
Worms Forts is set at this particular resolution to ensure the game runs optimally on minimum specification systems. It is however possible to increase the resolution if you so wish. In order to change the game from the default 800×600 resolution the shortcut must be manually modified. Note that this option may be combined with the manual windowed mode setting in point 5.6 also.