Outcast 1.1 has been updated to version 1.1.3.18756 — Outcast 1.1 Steam update #372120

Version 1.1.3.18756 This update fixed a major issue related to vsync management . The native fullscreen mode is now working as expected (should be more performant than any windowed modes) From that version, to achieve the best performance and quality we recommend to select "native" fullscreen mode and enabling the vsync. You should have a noticeable performance gain toward the "windowless fullscreen mode". Release notes history