Community-wiki endgame unlock for Quantum Core Generator and Quantum Core production.
Track this only after regular money, worker, storage, territory, and military replacement bottlenecks are already solved.
This is a situational priority in the Economy branch. Use it when the effect matches the next bottleneck in your current build path.
Do not treat Quantum as a normal mid-game upgrade; the cost and timer make it a post-Antimatter watch item until official notes confirm the payoff.
If the choice is unclear, open the Tech Advisor and compare this node against your current goal and bottleneck.
Open Tech AdvisorThese research nodes usually support the same timing or solve the next bottleneck.