Constructing or upgrading the facilities may consume a huge amount of resources. This tip might be helpful to reduce the total resources consumed when constructing or upgrading facilities. 

1. Hero Skill - Reduce Construction Cost Buff

- Assign as a hero with the skill to reduce the construction cost as a Command Center Minister

- Level up the hero and enhance the skill using skill elements to increase the percentage for the buff

2. Research Facility - Construction Cost

- Complete the research projects related to Construction Cost I & II (Planetary Development)

3. National Policy

- Unlock the National Policy called Capitalism (Tier II) > Unlock the Sub-policy called Materialism to activate the buff to reduce construction cost