Chaos Theory Windowed Mode | Splinter Cell

Change it to Fullscreen=No ? In many versions (Steam, Ubisoft Connect, retail disc), this does nothing. The game ignores the flag or reverts it on launch. There is no native borderless or windowed support.

Fullscreen=Yes

Right-click the shortcut > Properties > Target. Add -window at the end. Result: On modern systems, this usually results in a garbled 640x480 window with broken mouse input. The game attempts to render a fullscreen buffer into a small window, clipping UI elements. Method 2: The DirectX Wrapper (Most Effective) This is the gold standard. Tools like DGVoodoo2 or D3D8to9 (and the more recent DXVK for Vulkan) act as a translation layer. They trick Chaos Theory into thinking it’s talking to a legacy GPU, but instead, they convert the commands into modern DirectX 11/12 or Vulkan calls. splinter cell chaos theory windowed mode