Weapons and Spells are upgradeable in their respective shops (Blacksmith and Magic shop) in exchange for Gold and Ore (for weapons) and Essence (Magic).

Designing and coding this shop UI was unexpectedly complex, there is a lot going on (cost in gold and Essence/Ore, upgrade effect preview, item descriptions...) and on SMS there is not a lot of screen real estate... but we found a way that works!