After installing and patching the game it doesn't launch when pressing Play Xsyon. It just hangs there and gives no clue as to what's going on. 3 processes called Xsyon.exe (32bit) are visible in task manager and a xsyon-launcher.exe. It doesn't seem to time out and a computer restart makes no difference. The launcher is using 25MB of RAM and the other 3 processes use 120kB each.

Windows 7, 64bit, i7-4790, 16GB RAM, Nvidia gtx 970.