I see there have been posts about gamma problems going back several years, but it appears nothing has changed.
On my current-generation 13" MacBook Pro (Intel 3000 graphics), I have to increase the game's gamma to roughly 75% of its maximum setting to see things adequately, even during daytime. I don't mind that, but it causes all my other windows to be washed out until I quit the game or lower the gamma. This is a nuisance.
I suppose there's no way to have a custom LUT for the game (but maybe I'm wrong?), but surely the game's images can be matched better to the other windows. None of my other apps present this problem.