Critical Wine memory leak

RIght now I'm installing Unreal Anthology into Wine on Linux. My system monitor shows the memory consumption increasing by the second - when I started watching it, it was 400 megabytes... it has slowly increased to over 600! Fortunately the games have finished installing now and memory usage has stopped at 605 megs, but I was a little bit anxious and hoping that the installation would be finished before the memory use got to 2 gigabytes... I have no swap partition...

The train simulator I bought for my father for his birthday (which he has barely used) works quite well in Wine. There's just a problem with the fonts - almost none of the text is readable, so really the game is unplayable. But you can still drive around, which is all I ever did on it anyway :-)

I love this computer.

EDIT: As soon as I quit Wine, the memory usage went down to 287 megabytes. Ahh.