Liberum Veto
Liberum Veto is a Polish Commerce Age Church technology that trades research time for lower costs on selected economic and political technologies. It requires the Treaty of Lublin Home City Card and itself costs 75 Influence to research.

Research profile
- Age
- Commerce Age
- Civilization
- Poles
- Research location
- Church
- Home City Card
- Treaty of Lublin
- Research time
- 15 seconds
- Effect
- Folwark, Estate, Market, Politician, and Sejm technology cost -50%, research time +100%; Selective Breeding, Gill Nets, and Long Lines cost free, research time +200%
Effect & research conditions
The 15-second research halves the resource cost of Folwark, Estate, Market, Politician and Sejm technologies while increasing their research time by 100%. Selective Breeding, Gill Nets and Long Lines become free but take 200% longer to research, or three times their usual time. These changes apply only to the named technology groups.
Research condition
Poles; Commerce Age; Church; requires Treaty of Lublin Home City Card; costs 75 Influence; researches in 15 seconds.
When to research
Research it when preserving resources for units, buildings or another age transition is more valuable than getting the affected upgrades quickly. The free technologies still occupy a research queue for triple time, while the discounted group takes twice as long. Plan which research you will start after Liberum Veto and avoid relying on an upgrade that must finish immediately for the next engagement.
Polish technology cost and time changes
Liberum Veto is a Commerce Age Polish Church technology requiring the Treaty of Lublin Home City Card. It takes 15 seconds. It halves the resource costs of Folwark, Estate, Market, Politician and Sejm technologies while doubling their research times. Selective Breeding, Gill Nets and Long Lines become free but take three times as long to research.
Choose longer research for lower costs
This is a trade between resource price and time. It can preserve resources for units or buildings, but the affected upgrades finish later and delay their benefits. Plan the technologies that will be researched after Liberum Veto and consider whether their longer timers fit the match. The named free technologies still take time and must be researched at their normal sites.