Eidos hat den ersten Patch für die DVD-Version von "Tomb Raider: Underworld" veröffentlicht. Patch 1.1 wiegt rund 108 MB und behebt neben Grafikkarten- und Soundkartenproblemen folgende Schwierigkeiten:

• Inability of users to map the mouse buttons.
• Inability of users to map the ‘center camera' button.
• Some occasional crash fixes.
• Graphics card stability:+ A change to re-enable use of some graphics card features on ATI hardware, with their latest drivers. + Progress has been made towards addressing stalling on GeForce 6/7 series hardware.
• Fixed compatibility issues with certain Realtek sound drivers which could cause crashes.
• Autosaves now made for each chapter. Number of save slots is increased to accommodate these.
• Bug with ramp not raising in Xibalba.
• Fixed black screen deadlock when skipping doppelganger cinematic.
• Issue with door lever at Kraken room entrance.
• Occasional control issue during headshot move.
• Fixed an occasional problem when entering a save game filename.
• Some PDA fixes.
• Some cinematic subtitle fixes