The T-Square is an accessory that adds 3 points to your Building skill when equipped in your Accessory Bar. You can find it in the Accessories section of your inventory when it is not equipped. Unlike most skill-enhancing accessories, there are no lower-tier versions of this item.

How to Obtain

You can trade for this item in a market world, or purchase it from the in-game shop (but only as part of the Engineering Pack, which also includes the abacus).

How to Use

To equip this accessory, drag it into an active slot in your Accessory Bar.


When first implemented, the T-Square and other third-tier/onyx accessories dropped as loot from chests.