The Gold Factory – How to Make an X Potion

Both of these skills can be used during combat with a cooldown:

• Thunder Bolt deals a set amount of damage based on the skill level (starting at 20, +7 damage per level) with a cooldown of 20 seconds.
• Invulnerability makes you immune to all damage for a set amount of time based on the skill level (starting at 3 seconds, +3 seconds per level) with a cooldown of 30 seconds.

You can upgrade your skill after choosing it for a gold cost. Each upgrade costs 500*skillLevel*skillLevel+500 gold bars, with no ceiling on the skill level.

After analyzing the source code, I've figured out the exact numbers:

• Helmets absorb 1% of damage per upgrade for a total maximum protection of 4%
• Chestplates absorb 2% of damage per upgrade for a total maximum protection of 8%
• Pants absorb 1.5% of damage per upgrade for a total maximum protection of 6%
• Boots absorb 0.5% of damage per upgrade for a total maximum protection of 2%

The price at the beginning is the same because the price formula is (armorRating*armorRating)*1000+1000, where armorRating is the current protection percentage that you have for that armor type (multiplied by 100).