https://bugs.winehq.org/show_bug.cgi?id=39742
--- Comment #9 from winetest@luukku.com --- deleted prefix, installed the demo.
It starts with wine 1.9.21-git and wine-staging 1.9.21, but I don't get focus on it. Some logo is shown at taskbar.
Reverting the commmit mentioned here fixes the issue I have no focus issue and I am able to start a game.