Simula is a virtual reality (VR) window manager and desktop environment for Linux, built atop the Godot engine. It provides a VR-based Linux desktop experience, enabling productive workflows in AR/VR with immersive window management. A common objection to the viability of VR Desktop is that it exhibits poor text quality; however, with our low pass filter, Simula has taken special care to make text quality as clear as possible. The left image is a VR terminal without our filter applied; the right is the same image with our filter applied. Compared to other VR Desktops, Simula allows for longer sessions without uncomfortable eye strain. In Simula, VR Windows become “active” once you look at them. Active windows receive (i) typing events from the keyboard and (ii) cursor events from any mouse movement.