Twilight's Fall – a separate game. Twilight Imperium's expansions, mods and rules topics are not part of it.

Contractual Obligations

At the start of the agenda phase, for each unit upgrade technology you control, you may choose 1 player. Each of those players must produce 1 ship in a system that contains 1 or more of their space docks or war suns.
Roh'Dhna MechatronicsTechnology – Cybernetic

Cybernetic

At the start of the agenda phase, for each unit upgrade technology you control, you may choose 1 player. Each of those players must produce 1 ship in a system that contains 1 or more of their space docks or war suns.

Prerequisites: CyberneticCybernetic

Source: Discordant Stars