|Production of Units & Ships|
- Training of all military units except for the Unit-ship:Cook, Doctor, Ram, Slinger and Spearman.
- Construction of all war ships.
- Expansion of the Dump. (Level 1 and higher).
- Expansion of the Palace and/or Governor's Residence. (Level 3 and higher).
- Donations to the Miracles on non-sulphur islands.
- A Firework Test Area decreases sulphur costs for all of these uses, except for Miracle donations, by 1% per level in the town it is built in.
- An Alchemist's Tower increases the sulphur production of a Sulphur pit by 2% per level in the town it is built in.
- The Ikariam Plus sulphur production bonus is a separate process and does not affect the bonus from the Alchemist's Tower.