This good old game unfortunately has some issues on modern systems. Right out of the box the game comes in a very low resolution (640x480) with no reasonable way to change it AND, worst of all, it is also pretty laggy down to the point it is unplayable (even though no PC from this generation should have any problems with it). If you want to actually play this game, you will probably need to do some tweaking. What helped me on Win 8.1 was the "ReSolution" module WITH windowed mode (non-windowed was laggy for me) available on "https://worms2d.info/ReSolution". If that does not help, there might be some other possibilities including the GOG refund policy. Also, considering getting Armageddon or World Party instead of this one shall be recommended.
