The Alchemy Lab was first announced in December, 2018 and was released in June 2019 along with several other new advanced buildings. The Lab can be converted from any existing non-storage building that is at or above level 5 after unlocking Stronghold 23.
It is improved in version 30.
Highly anticipated (see the original Idea/Suggestion thread), the Alchemy Lab is a crafting building that transmutes lower level items into higher rarity items. It also transmutes farmable ascension materials into non-farmable ascension materials of the same rarity.
However, the Alchemy Lab has several limitations that the other crafting buildings such as the Training Camp, Hunter's Lodge, or Forge do not have:
- Level 10 require Gems to use.
- You can queue multiple Transmutations for a given level, but once the order is placed in the Lab, you can not remove or reduce the queue.
- You can not speed up or skip Transmutation times with Gems. Therefore, it is advised you watch what orders you place, as you can accidentally tie up the Lab for very long periods of time.
The Alchemy Lab also introduces a new item called Alkashards. The Alchemy Lab produces Alkashards with every completed transmutation. The amount of Alkashards produced varies depending on the Level of the Alchemy Lab as well as what items are being transmuted. These shards can then be collected and 1000 Alkashards can be combined into one of 6 selectable items.
The produced Alkashards can be boosted with gems.
Each level unlocks two recepies (A and B).
Rewards for combination of Alkashard:
Slot 1: 90%: 3 star ascension material, 10%: 4 star ascension material
Slot 2: 3 star ascension material
Slot 3-4: 10 emblems
Slot 5-6: 5 five star battle items
Upgrade Costs:
| Level | Iron | Time | Research Cost - A | Research Cost - B | Research Time - A | Research Time - B |
| 1 | 2367k | 10s | 510k Food | 652k Food | 1d 0h | 1d 0h |
| 2 | 2479k | 1d 8h | 729k Food | 897k Food | 1d 0h | 1d 0h |
| 3 | 2495k | 2d 0h | 988k Food | 1199k Food | 1d 0h | 1d 0h |
| 4 | 2502k | 2d 22h | 1232k Food | 1409k Food | 3d 0h | 3d 0h |
| 5 | 2521k | 4d 2h | 1511k Food | 1625k Food | 3d 0h | 3d 0h |
| 6 | 2531k | 5d 13h | 1839k Food | 1951k Food | 3d 0h | 3d 0h |
| 7 | 2551k | 7d 9h | 2163k Food | 2306k Food | 7d 0h | 7d 0h |
| 8 | 2562k | 9d 6h | 2576k Food | 2688k Food | 7d 0h | 7d 0h |
| 9 | 2573k | 11d 0h | 2709k Food | 2809k Food | 7d 0h | 7d oh |
| 10 | 2594k | 12d 13h | 3105k Food | 3127k Food | 7d 0h | 14d 0h |
Usage:
Level types:
- U: Upgrade item to lower rarity
- X: Convert item in same rarity
| Level | Type | Item type | Input | Input count | Transmutation Cost | Output | Alkashards Produced | Time | Alkashard Boost |
| 1A | X | Crafting Material |
1 star item |
4 | 4k Food | 1 star item | 2 | 1h | 1 Gem for 1 Alkashard |
| 1B | U | Crafting Material | 1 star item | 12 | 1.8k Food | 2 star item | 2 | 1h | 1 Gem for 1 Alkashard |
| 2A | X | Battle item | 1 star item | 4 | 10k Food | 1 star item | 4 | 2h | 1 Gem for 2 Alkashard |
| 2B | U | Battle item | 1 star item | 10 | 3.6k Food | 2 star item | 4 | 2h | 1 Gem for 2 Alkashard |
| 3A | X | Ascension Material | 1 star item | 4 | 15.5k Food | 1 star item | 7 | 3h | 3 Gem for 6 Alkashard |
| 3B | U | Ascension Material | 1 star item | 18 | 7k Food | 2 star item | 7 | 3h | 3 Gem for 6 Alkashard |
| 4A | X | Crafting Material | 2 star item | 4 | 32k Food | 2 star item | 15 | 6h | 5 Gem for 12 Alkashard |
| 4B | U | Crafting Material | 2 star item | 8 | 15k Food | 3 star item | 15 | 6h | 5 Gem for 12 Alkashard |
| 5A | X | Battle item | 2 star item | 4 | 67k Food | 2 star item | 30 | 12h | 5 Gem for 12 Alkashard |
| 5B | U | Battle item | 2 star item | 7 | 30k Food | 3 star item | 30 | 12h | 5 Gem for 12 Alkashard |
| 6A | X | Ascension Material | 2 star item | 4 | 93.3k Food | 2 star item | 41 | 15h | 7 Gem for 14 Alkashard |
| 6B | U | Ascension Material | 2 star item | 15 | 45k Food | Farmable 3 star item | 41 | 15h | 7 Gem for 14 Alkashard |
| 7A | X | Crafting Material | 3 star item | 4 | 170k Food | 3 star item | 67 | 1d 0h | 11 Gem for 23 Alkashard |
| 7B | U | Crafting Material | 3 star item | 5 | 94k Food | 4 star item | 67 | 1d 0h | 11 Gem for 23 Alkashard |
| 8A | X | Battle item | 3 star item | 4 | 372k Food | 3 star item | 135 | 2d 0h | 21 Gem for 45 Alkashard |
| 8B | U | Battle item | 3 star item | 5 | 220k Food | 4 star item | 135 | 2d 0h | 21 Gem for 45 Alkashard |
| 9A | X | Crafting Material | 4 star item | 4 | 627k Food | 4 star item | 225 | 7d 0h | 35 Gem for 75 Alkashard |
| 9B | X | Battle item | 4 star item | 4 | 641k Food | 4 star item | 225 | 7d 0h | 35 Gem for 75 Alkashard |
| 10A | U | Ascension Material | Farmable 3 star item | 12 | 100 Gems + 125k Food | 95%: Non-farmable 3 star item
5%: 4 star item |
450 | 7d 0h | 150 Gem for 350 Alkashard |
| 10B | X | Ascension Material | 4 star item | 1 | 200 Gems + 225k Food | 4 star item | 450 | 7d 0h | 150 Gem for 350 Alkashard |