Hidden Research Facility

The  is a limited-time building that was released on March 28, 2017, as part of the Secret Agents 2017 Event.

Secret Agents 2017 Event Crafting
During the event it is the hub for the crafting system. A total of 12 levels for the player to reach and unlock new crafting items with every new level.

Trivia

 * Only one can be obtained.