Possible?

Yes its possible.

Just press escape and go to options -> their you will find a option Windowed ( right of resolution)

but if your monitor is too small, like mine, windowed mode will not work.

to fix your window mode, all you need to do is go to desktop - properties and screen resolution size.

now the lowest size for hgl is set in game, all you need to do is go set your monitor's resolution to any size bigger than the minimum hellgate resolution

and it's windowed

same happen to me


start other game like wc3 with other resolution and switch to hgl
or settings