Ore Refinery

The Ore Refinery building gives your colony a steady income of credits. For every level of the refinery gives your colony gains 143 credits. Each level of the building becomes increasingly expensive and it might not be worth it to upgrade the building if the costs can't be covered.

Credit cost = 800 * 1.6 ^ (lvl-1)

Fuel cost = 160 * 1.6 ^ (lvl-1)

Tech cost = 4 * 1.6 ^ (lvl-1)

Score = 96 * 1.6 ^ lvl

Output = 143 * lvl