: The update should download automatically through the Steam Client . If it hasn't, right-click the game in your library, select Properties > Updates , and ensure automatic updates are enabled.

: Fixes for various bugs and performance optimizations reported since the original launch. How to Get the Update

: New story elements, characters, and "The Void" world expansion.

: If you do not own the game, you must purchase the base version to access the Anniversary Edition content.