https://bugs.winehq.org/show_bug.cgi?id=33479
--- Comment #68 from Anton Vorobyov phoenix@mail.ru --- Ok, i managed to reproduce it reliably.
1) Launch naissancee (steam and game itself in virtual desktop, else switching focus is kind of broken) 2) Enter game 3) Switch focus to any external window (eg skype message window) via alt-tab 4) Switch focus back via alt-tab 5) Try to look around
Result: Mouse looking is confined within some boundaries. If you try look left/right you wouldn't be able to rotate view indefinitely.
Workaround: Switch to windowed and back