Acorns are needed for several formulas acquired in Gothica, but outside of that region are not sold by any merchant.
The Regrowth alchemist in Ebon Keep is the cheapest place to purchase Acorns, especially once Mungola is defeated and her prices drop. However, none of the other Acorn merchants overcharge for the ingredient, so the player can stock up where needed without fear of losing much money.
- Ivor Tower; Lance (120 Gold Coins)
- Ivor Tower Castle (temporary); Fire Power alchemist (120 Gold Coins)
- Ebon Keep; Regrowth alchemist before Mungola (100 Gold Coins)
- Ebon Keep; Regrowth alchemist after Mungola (50 Gold Coins)
- Ebon Keep Castle; Tinker (120 Gold Coins)
Prehistoria: Acid Rain - Cure - Defend - Flash - Hard Ball - Heal - Levitate - Speed
Antiqua: Atlas - Crush - Double Drain - Drain - Escape - Fireball - Revealer - Revive - Sting
Gothica: Barrier - Corrosion - Explosion - Fire Power - Lance - Lightning Storm
Miracle Cure - One Up - Regrowth - Slow Burn - Super Heal
Omnitopia: Call Up - Energize - Force Field - Nitro - Reflect - Stop