Recruitment is the gacha system in Alchemy Stars, and the main method for players to obtain Aurorians.
Overview[]
There are five types of recruitments:
- The Exclusive Beginner's Recruitment is available indefinitely until all 21 pulls are made, and uses Lumamber instead of Star Flares.
- The Mainstay Recruitment is permanent and always available, costing 1 Star Flare per pull.
- Rotating Recruitment, formerly known as Rotating Recommended Recruitment (RRR), is available periodically and features Aurorians on "rate-up"; i.e. featured Aurorians have a higher chance of being recruited compared to other Aurorians in the gacha pool. RRRs cost 1 Star Flare to pull
- Limited-Time Recruitments are only available for a limited time, and cost Special Star Flares instead of regular Star Flares. Time-limited recruitments typically feature new Aurorians on "rate-up" and are exclusive to their banners for a period of time. They are usually added to the general pool after their limited banner ends.
- Exclusive Recruitment cost Special Star Flares to pull, and feautures limited-time Aurorians. These featured Aurorians are exclusive to their banners and will not be available in other recruitments.
Players can buy either types of Star Flares for 300 Lumamber each in the recruitment menu or through the Store.
Mechanics[]
Pity System[]
| Rarity | Rate |
|---|---|
| 6★ | 2.0% |
| 5★ | 9.5% |
| 4★ | 33.0% |
| 3★ | 55.5% |
The initial probability of obtaining a 6-Star Aurorian from this recruitment is 2%. If you fail to recruit a 6-Star Aurorian after 50 recruitments in a row, the probability of obtaining a 6-Star Aurorian on your next attempt will increase from 2% to 4.5%. If you fail to recruit a 6-Star Aurorian on this recruitment attempt, the probability of obtaining a 6-Star Aurorian on your next recruitment attempt will increase from 4.5% to 7%, and so on. Whenever you fail to recruit a 6-Star Aurorian, the probability of obtaining a 6-Star Aurorian will increase by 2.5% until it reaches 100%. After obtaining a 6-Star Aurorian, the probability of obtaining a 6-Star Aurorian will be reset to 2%.
| Pulls Without a 6★ | 6★ Rate |
|---|---|
| 1-50 | 2% |
| 51 | 4.5% |
| 52 | 7% |
| ... | ... |
| 90 | 100% |
| Complete probabilities | |
|---|---|
| Pulls Without a 6★ | 6★ Rate |
| 1-50 | 2% |
| 51 | 4.5% |
| 52 | 7% |
| 53 | 9.5% |
| 54 | 12% |
| 55 | 14.5% |
| 56 | 17% |
| 57 | 19.5% |
| 58 | 22% |
| 59 | 24.5% |
| 60 | 27% |
| 61 | 29.5% |
| 62 | 32% |
| 63 | 34.5% |
| 64 | 37% |
| 65 | 39.5% |
| 66 | 42% |
| 67 | 44.5% |
| 68 | 47% |
| 69 | 49.5% |
| 70 | 52% |
| 71 | 54.5% |
| 72 | 57% |
| 73 | 59.5% |
| 74 | 62% |
| 75 | 64.5% |
| 76 | 67% |
| 77 | 69.5% |
| 78 | 72% |
| 79 | 74.5% |
| 80 | 77% |
| 81 | 79.5% |
| 82 | 82% |
| 83 | 84.5% |
| 84 | 87% |
| 85 | 89.5% |
| 86 | 92% |
| 87 | 94.5% |
| 88 | 97% |
| 89 | 99.5% |
| 90 | 100% |
All Limited-Time Recruitments (including RRRs) follow the above rules. This means that, in all Limited-Time Recruitments, if you fail to obtain a 6-Star Aurorian, your probability of obtaining one will accumulate. This accumulated probability will not be cleared at the end of the Limited-Time Recruitment, and will be carried over to the next Limited-Time Recruitment. If multiple Limited-Time Recruitments are active at the same time, this probability will accumulate and apply to each of them collectively.
Note: The probability boosts of RRRs, the basic Mainstay Recruitment and Limited-Time Recruitment function independently of one another. For example, if the probability of recruiting a 6-Star Aurorian from the basic Mainstay Recruitment is increased to 7%, this increase will not be applied to any Limited-Time Recruitments, and vice versa.
Guarantee System[]
After a December 2021 update, a guarantee mechanism was added for Exclusive Recruitment, Limited-Time Recruitment, and Rotating Recruitment.
Guarantee Mechanism Info:
If the 6-star Aurorian featured in this recruitment is not obtained within 2 consecutive attempts, then the next 6-star Aurorian obtained through this recruitment will definitely be the featured 6-star Aurorian. Each time the featured 6-star Aurorian is obtained, the guarantee mechanism will be reset and recalculated.
Guarantee Mechanism Coverage:
Exclusive, limited-time and rotating recruitment will each have a different guarantee mechanism. Different guarantee mechanisms will only apply to its corresponding recruitment and will not affect the others. Whether the mechanism for different recruitments corresponds to any other recruitment pools in the same period and rolls over to any future recruitments or not, please refer to the recruitment info in the game.
Guarantee Mechanism for Recruitment:
If the 6-star Aurorian featured in Limited-Time/Rotating Recruitment is not obtained within 2 consecutive attempts, then the next 6-star Aurorian obtained through this recruitment will definitely be the featured 6-star Aurorian. Each time the featured 6-star Aurorian is obtained, the guarantee mechanism will be reset and recalculated. The increased probability for the recruitments will not be cleared because of the end of a recruitment and roll over to the future recruitments. Also, if there are multiple Limited-Time/Rotating Recruitment pools in the same period of time, the guarantee mechanism will be activated when taking part in any of the recruitments.
Duplicates[]
When duplicate Aurorians are obtained, they are automatically converted to other materials. These materials can be traded in the Store to obtain other items or Aurorians.
| Pulled Aurorian | Additional reward | 1st Dupe | 2nd Dupe | 3rd Dupe | 4th Dupe | 5th & up Dupes |
|---|---|---|---|---|---|---|
| Duplicate 6★ | 1 Solamber for that character 200 universal Heartstones 20 Stellar Gems |
10 Astral Gems | 20 Astral Gems | 20 Astral Gems | 30 Astral Gems | 50 Astral Gems |
| Duplicate 5★ | 1 Solamber for that character 100 universal Heartstones 5 Stellar Gems |
1 Astral Gem | 1 Astral Gem | 2 Astral Gems | 2 Astral Gems | 3 Astral Gems |
| Duplicate 4★ | 1 Solamber for that character 50 universal Heartstones 25 Star Gems | |||||
| Duplicate 3★ | 50 universal Heartstones 10 Star Gems |