What's in the Companion Square Box?
What's in the Companion Square Box? is an action item given to the Comic-Con San Diego 2012 attendants who purchased a Companion Square toy made by ThreeA Toys and redeemed the exclusive Steam code included with the toy. It appears in the backpack as a purple gift box with lime polka dots tied with a fuchsia ribbon. A Name Tag is attached with a question mark.
- [Undocumented] Added What's in the Companion Square Box? to the game.
- Unlocked the "What's in the Companion Square Box?"
- At the convention, approximately 300 replica Sandviches were sold alongside the 300 Companion Squares. 
- Many of the items of merchandise purchased at the booth were signed by the booth attendants; Andrew Wilson, Ashley Wood, Bill Fletcher, Laura Dubuk, Karen Prell and Wade Schin.
- What's in the Sandvich Box?
- What's in the Portal 2 Soundtrack Box?
- What's in the Team Fortress 2 Soundtrack Box?
- Weighted Companion Cube
- ThreeA Toys