Mouse Pointer Moves on its Own in Oxygen Not Included Posted November 20, 2019 · Edited November 20, 2019 by PreliatorMax to reply to SharraShimada To the devs: please disregard this bug thread as the mouse pointer is properly moving now both when launched and in-game. I don't know if this is related but I launched it today after updating Steam. @SharraShimada For anyone who might encounter the issue in the future, I'll try to answer your questions: 1. It's on windowed mode on 1360x768 with "-popupWindow" launch parameter. Removed the parameter to see if it helps but can't change to full screen and the resolution because of the mouse issue. 2. Single monitor 3. Just a typical plug-and-play USB mouse. 4. No, but if it's a device issue then the mouse shouldn't work normally when I alt-tabbed from ONI. 5. No.