Codes ยท Android, iOS
Alchemy Stars Codes: Active and Expired (June 2026)
Last checked May 28, 2026 (UTC)
Alchemy Stars codes are the slow drip kind, a few per event window, mostly Lumamber, gone the moment the window shuts. I prune the dead ones so what's listed here actually redeems.
Alchemy Stars codes are the redemption strings Tourdog hands out around updates, collabs and anniversary campaigns, which you trade in for free Lumamber, gold and Aurorian upgrade materials. If you're new: this is the tile grid gacha. You link colored tiles and your Aurorians chain attacks off them, which means element coverage decides fights more than raw rarity does. Lumamber is the summon currency, gold and materials feed the levels. Code rewards look small on paper, but they're the kind that quietly add up to an extra pull or two per event.
Quick tip. the rewards don't land on your balance, they land in your in game mailbox. The first code I redeemed here, I stared at my Lumamber total convinced it had failed, and the whole package was just sitting in the mail tab. Redeem, then check the mailbox, in that order.
New codes track the event calendar: big version updates, collaborations, anniversaries. Each one lives inside its event window and dies with it, so the worst possible plan is saving them for later. Redemption is buried in the settings menu under the exchange code option, and the codes are case sensitive, so paste rather than type.
- Redeem in game: settings, then the exchange code option. No website.
- Expect Lumamber, gold and materials. That's the menu.
- Rewards arrive in your mailbox, not straight onto your balance. Go claim them.
- One redemption per code, per account.
- Case sensitive. The Copy button exists so your typing doesn't have to.
Active Alchemy Stars codes (4)
Copy, paste, confirm, then open the mail tab. These ride event windows, so the list below is worth doing today rather than this weekend.
| Code | Reward |
|---|---|
| ALCHEMYSTARS2026 New Expires soon | Lumamber and materials |
| AURORIANGIFT Expires soon | Lumamber |
| TILESUMMON Expires soon | Gold and materials |
| ASUPDATE Expires soon | Lumamber bundle |
When one bounces as invalid, it expired or you already used it. I move confirmed deaths down to the archive as soon as I catch them.
Expired Alchemy Stars codes
These Alchemy Stars codes are done. Their event windows closed and took them along.
| Code | Reward | Expired |
|---|---|---|
| ASLAUNCH | Launch Lumamber | 2025 |
| ASSUMMER25 | Summer gold | September 2025 |
| ASWINTER25 | Holiday Lumamber | January 2026 |
How to redeem Alchemy Stars codes
It all happens in game and takes under a minute. The only step people miss is the last one, because the game mails you the rewards instead of just adding them.
- Open Alchemy Stars and head into the settings menu.
- Pick the exchange code option.
- Paste the code exactly as written, capitals included.
- Confirm, then open your mailbox and claim the package waiting there.
If a code gets rejected, run the boring checklist: did you paste it (they're case sensitive), has the event ended, did you already use it. In my experience that covers every rejection.
Alchemy Stars codes FAQ
What do Alchemy Stars codes actually give?
Lumamber, gold and Aurorian materials. Lumamber is the one that matters, since it feeds summons; the rest just smooths out leveling.
What's the smartest way to spend code Lumamber?
Patch your weakest element instead of chasing whoever's new. The tile system rewards matching your team's element against the enemies, so a roster with one thin color keeps losing fights it shouldn't. I'd rather pull a decent Aurorian in a color I lack than a fourth dupe in one I've covered.
I redeemed a code and got nothing. Did it eat my reward?
Almost certainly not. Check your in game mailbox, that's where every code reward lands. I learned that one the silly way on my first redemption.
Why was my code rejected?
Expired, already used, or typed instead of pasted. These are case sensitive, so one lowercase letter where a capital should be kills the whole thing.
Does the tile system change how I should value these rewards?
It does. Because combat runs on linking colored tiles, element coverage beats raw star count, and that makes the free Lumamber more useful than it looks. It's gap filling money, not jackpot money.
Where do new Alchemy Stars codes show up first?
The official channels, usually pinned to whatever update or collab is running. If an event just launched and you haven't seen a code yet, that's exactly the moment to go look.