http://bugs.winehq.org/show_bug.cgi?id=12084
Summary: Project Nomads: game can't grab mouse Product: Wine Version: 0.9.57. Platform: PC OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown AssignedTo: wine-bugs@winehq.org ReportedBy: dmitriy.geels@gmail.com
Allow mouse grab for directx apps is enabled, but game can't grab cursor - so mouselook is completely unusable. No clues appear in log, at least with default debug level.
Same problem encountered in another small game: Dead Boys -- but that one uses DX5, hope it will help you to find problem. This game can be found here: http://loyso.m6.net/deadboys/download.html