12 April 2026
Upgrade research becomes one-and-done, and duplicate upgrade structures are capped at one each.
Upgrade System Changes
- Prevented players from re-researching the same upgrade after it has already been completed. Since duplicate research never provided any additional effect, completed upgrades now become effectively unavailable by setting their repeat research cost to 999999 minerals and 999999 gas.
- Limited each player to one Engineering Academy, one Armory, and one Fusion Core, to prevent duplicate upgrade structures from creating inconsistent upgrade behaviour.