This mod edits 1 static modifier & 3 deficit situations.


Static modifier

Planet base:
no vanilla effects

Deficit situations

Rare crystals deficit:
planet_structures_rare_crystals_upkeep_mult = -0.25
planet_building_refund_mult = 0.5
planet_structures_cost_mult = 0.5

Volatile motes deficit:
planet_structures_volatile_motes_upkeep_mult = -0.25
planet_building_refund_mult = 0.5
planet_structures_cost_mult = 0.5

Exotic gases deficit:
planet_structures_exotic_gases_upkeep_mult = -0.25
planet_building_refund_mult = 0.5
planet_structures_cost_mult = 0.5


Added, edited & removed affects are in bold.

Static modifier

Planet base:
planet_building_refund_mult = 0.8 (added)

Deficit situations

Rare crystals deficit:
planet_structures_rare_crystals_upkeep_mult = -0.25
planet_structures_cost_mult = 0.25 (edited)

Volatile motes deficit:
planet_structures_volatile_motes_upkeep_mult = -0.25
planet_structures_cost_mult = 0.25 (edited)

Exotic gases deficit:
planet_structures_exotic_gases_upkeep_mult = -0.25
planet_structures_cost_mult = 0.25 (edited)

Note that the "planet_building_refund_mult = 0.5" is removed from the 3 deficit situations.
If I left the refund bonus in, you'd be refunded 130% of resources (gaining more resources than you paid).
Since the refund bonus is removed, I halved the building cost multiplier penalty (from +50% to +25%), to make up for it.