After playing a few tactical missions Xenonauts had a few graphical glitches, then crashed out on me. Since then I have not been able to go more than a turn without the game crashing.
My computer:
Mac Mini
OSX 10.9.3
2.4 GHz Intel Core 2 Duo
8 GB 1067 MHz DDR3
NVIDIA GeForce 320M 256 MB
I just downloaded the game yesterday and am running 1.05 HF.