Quick answer: Once Human caps the Starchrom you can earn from normal gameplay at 66,000 per calendar month. The cap doesn't open all at once. It unlocks in four steps on fixed dates: the 1st, 8th, 15th and 22nd of the month. That's why it feels like a "weekly limit" even though it isn't tied to a weekday. It resets to zero on the 1st of each month. Starchrom from events, the Battle Pass and Blueprint Collection Level rewards doesn't count toward the cap. If you're sitting on Active Starchrom Crates you can't open, you've hit the current step. Keep them and open them after the next unlock date. For November 2026 that's November 15, then November 22, then the full reset on December 1. Checked against the official Once Human update notes on November 14, 2026 (current build: Version 3.1.2).
Key takeaways
- 66,000 Starchrom per month from regular play. That number has been in place since the Stellar Stairway launched in December 2024, and Starry Studio said the monthly rules "will remain unchanged" when it removed the Stairway in March 2026.
- The cap opens in four steps: days 1–7, 8–14, 15–21 and 22 to month end. You can't earn the whole month's Starchrom in week one.
- Missed a week? You don't lose it. The cap is cumulative. Players who start late in the month report catching up to the full released amount fast.
- Events, the Battle Pass and Collection Level are exempt. So were mail rewards under the original rules.
- Capped Active Starchrom Crates stay in your bag. Each one holds 500 Starchrom. Open them after the next step unlocks.
- Check the live number on the Blueprint screen. That's where the game shows your cap for the current cycle.
What is the Starchrom limit in Once Human?
Starchrom is the currency you spend on weapon and armor blueprints. Since Version 2.3.5 (March 25, 2026), you activate and upgrade blueprints directly from the Blueprint screen with Starchrom. Blueprint Fragments, the Blueprint Shop and Starchrom draws at the Wish Machine are all gone. So the cap on Starchrom is effectively a cap on how fast you can build new gear.
The limit dates back to Version 1.3.4 (December 19, 2024). That patch added the Stellar Stairway, a monthly progress track that turned in-game activity into Starchrom. The official notes set the ceiling plainly: "Players can obtain up to 66,000 Starchroms per month, not including Starchroms obtained through events, mail, and other means" (Once Human 1.3.4 update notes).
The featured image above is that original Stellar Stairway screen, with its 44000/66000 counter and reset timer. The Stairway itself was removed in March 2026, but the cap it enforced wasn't. In the 2.3.4 preview and the 2.3.5 patch notes, Starry Studio wrote:
"The monthly Starchrom acquisition rules will remain unchanged. You will be able to check the Starchrom cap for the current cycle on the Blueprint screen."
— Starry Studio, Version 2.3.5 update notes, March 25, 2026
Sources that used to give Asterism or Asterism Crates now give Starchrom or Starchrom Crates directly. Those are the ones that fill your monthly cap.
When does the Starchrom limit reset?
The cap resets on the 1st of every month and opens up in four steps through the month. The schedule below comes from the 1.3.4 notes, which split each month into four phases. Phases 1 to 3 were worth 18,000 Starchrom each (12,000 from standard rewards plus a 6,000 phase reward), and Phase 4 added a final 12,000.
| Step | Unlocks on | Starchrom added | Cumulative cap |
|---|---|---|---|
| 1 | 1st of the month | 18,000 | 18,000 |
| 2 | 8th | 18,000 | 36,000 |
| 3 | 15th | 18,000 | 54,000 |
| 4 | 22nd | 12,000 | 66,000 |
| Reset | 1st of next month | back to 0 | — |
The 1.3.4 notes are explicit that the later steps stay locked until their date: "Phases remain locked until their corresponding date is reached. For example, if it is January 5, Phases 2 to 4 remain locked."
For November 2026: today is the 14th, so the cap stands at 36,000. It goes to 54,000 on November 15, reaches the full 66,000 on November 22, and resets on December 1.
Two things trip people up:
- It's date-based, not tied to a weekday. New players often expect a Monday reset and are surprised when the cap moves on a different day. Count from the 1st of the month instead.
- The official notes we cited don't give a reset hour. The game shows a countdown ("Resets in…" on the old Stairway screen; the cap counter now lives on the Blueprint screen). Trust the countdown over any time zone conversion you find online.
Starry Studio's 2.3.5 notes say the monthly rules are unchanged but don't reprint the phase table. If the Blueprint screen ever shows a different number, the in-game counter wins.
Is the Starchrom limit weekly or monthly?
It's monthly, released in roughly weekly chunks. That's why both phrases show up in searches and forum posts.
What matters in practice:
- You can't front-load the month. A heavy first weekend caps you at 18,000 until the 8th.
- You can back-load it. The cap is cumulative, so a player who starts on the 22nd can still earn the full 66,000 that month. As one player put it, if you only play in the last week of the month, you can get the full amount in one week.
- The cap doesn't follow your scenario. The 1.3.4 notes say the Starchrom system "operates independently of scenarios". Moving to a new server or a new scenario doesn't refill it.
What counts toward the Starchrom cap, and what doesn't?
The official notes only list the exceptions. Everything else that pays out Starchrom during normal play counts.
| Source | Counts toward the monthly cap? | Source of the rule |
|---|---|---|
| Events (check-ins, limited-time events) | No | 2.3.5 notes |
| Battle Pass rewards | No | 2.3.5 notes |
| Blueprint Collection Level rewards | No | 2.3.5 notes |
| Mail rewards | No, under the original 1.3.4 rules | 1.3.4 notes |
| Sources the 1.3.4 notes switched to Asterism (Season Goals, Territory Purification, Stellar Planula Shop and Season Shop, Prime War first clears) | Yes. Asterism fed the monthly track, and 2.3.5 turned those payouts into capped Starchrom | 1.3.4 + 2.3.5 notes |
| Exploration points, settlement treasures, first-clear dungeon rewards and tasks that used to give Blueprint Fragments | Not spelled out. Watch the Blueprint screen counter | 2.3.5 notes |
The exempt sources matter more than they look. Event check-ins, Battle Pass tiers and Collection Level rewards keep paying out after you're capped, so they're the only way to keep your Starchrom balance growing once the current step is full. Maintenance compensation adds a little too: the Version 3.1.2 maintenance on November 4, 2026 gave every player Starchrom ×1,000.
Why can't I open my Starchrom crates?
That's the cap. Active Starchrom Crates hold 500 Starchrom each, and they're the crate type that counts toward the monthly limit. When you reach the current step, ordinary play keeps paying crates, but the Starchrom inside them is still capped.
The current behavior, as players describe it in November 2026, is that the game won't let you open an Active Starchrom Crate while you're at the cap. A thread on r/OnceHumanOfficial titled "I have 70 crates of Starchrom that I cannot open" (November 13, 2026) is the latest of several. Earlier in the console launch window, one player wrote: "I'm playing on console and I have limited it out very quickly and I am currently sitting on 45 starchrom crates that I can't even open."
What to do with them:
- Don't throw them away. The crates stay in your inventory.
- Wait for the next unlock date (the 8th, 15th, 22nd or the 1st) and open them then. Every crate you open fills the newly opened step, 500 at a time.
- Open only what fits. If the new step adds 18,000, that's 36 crates. Players who open extra crates past the cap have reported losing the overflow, so if the game does let you open one, check that the counter on the Blueprint screen actually moved.
- Keep playing anyway. A stockpile means the next step fills the moment it unlocks, without any grinding. One player put it this way: crates banked now "will save you time in subsequent weeks".
Players also describe other crates simply called "Starchrom Crates" that don't touch the cap. Neither crate type is defined in the official notes, so test a single crate before you open a stack.
How do you get Starchrom after hitting the limit?
Once the current step is full, only exempt sources raise your balance:
- Events. Check the Events page after every update. The Visional Wheel S5: Dissonant Resonance update lands November 18, 2026 (PT) with a new set of Vision events. Event rewards are exempt from the cap.
- The Battle Pass. Its Starchrom rewards are exempt from the cap.
- Blueprint Collection Level. Unlocking and upgrading blueprints of any quality earns collection experience, and level-ups pay rewards that don't count against the cap.
- Mail rewards. The original rules excluded mail from the cap, so claim your mailbox after each update.
Everything else is about timing. Bank capped crates, and plan big blueprint upgrades for the days right after an unlock date.
What should you spend capped Starchrom on?
With 66,000 a month, Starchrom is the bottleneck on new builds, so spend it in this order:
- The main weapon you actually use. Activate it on the Blueprint screen and push its stars before anything else.
- The armor pieces that complete that build. A half-finished set wastes the weapon investment.
- Blueprint Conversion before new purchases. It moves star levels between unlocked blueprints of the same rarity, so testing a sidegrade doesn't have to cost a fresh upgrade path.
- A second build only after the first is done. Spreading Starchrom across five half-upgraded guns is the classic new-player mistake.
If you're still choosing a build, our best beginner build and SN700 Unstable Bomber build guides list the blueprints worth your first 66,000.
Two old tips no longer apply. The Wish Machine doesn't take Starchrom since the April 22, 2026 rework; it runs on activity rewards now. And the Blueprint Shop closed on March 25, 2026.
Does the Starchrom limit carry over between scenarios?
Your Starchrom balance and unlocked blueprints carry over. Blueprints are permanent across scenarios, which is why veterans rebuild fast on a new server. The cap doesn't care which scenario you're in either. It runs on the calendar month, so moving your character to a new server or scenario mid-month neither refills nor resets it.
For everything else that resets when a scenario ends, from levels to Tech, see our what carries over and what resets guide.
How do you farm Starchrom efficiently under the cap?
Since the cap is fixed, "farming faster" only helps until the current step is full. The efficient approach for a typical month:
- Days 1–7: Play normally and hit 18,000. Clear first-time rewards on a new server (exploration points, settlement treasures, first-clear dungeons) because they're one-time payouts anyway.
- Days 8–21: Fill each step as it opens, then switch to exempt sources and bank Active Starchrom Crates.
- Day 22 to month end: Open banked crates to reach 66,000. Only the earning counter resets on the 1st. Starchrom you've already collected stays in your balance, so there's no deadline to spend it.
For the actual routes, see our Starchrom and Energy Links farming guide. If you're still leveling, our how to level up fast guide covers the commissions and EXP boosts that bring Starchrom-paying content within reach.
FAQ
What is the Starchrom limit in Once Human? It's 66,000 Starchrom per calendar month from regular gameplay. The cap opens in four steps on the 1st, 8th, 15th and 22nd and resets on the 1st of the next month. Events, the Battle Pass and Collection Level rewards don't count toward it.
When does the Starchrom limit reset in Once Human? The full cap resets on the 1st of each month. Within the month, more of it unlocks on the 8th, 15th and 22nd. The official notes don't give an exact hour, so use the countdown in the game. For November 2026 the next unlock is November 15 and the full reset is December 1.
Is the Once Human Starchrom limit per character or per account? The official notes don't say. They describe it as a monthly limit that "operates independently of scenarios", so changing server or scenario doesn't reset it. Check the cap counter on the Blueprint screen for the character you're playing.
Why can't I open my Active Starchrom Crates? You've reached the current step of the monthly cap. Keep the crates and open them after the next unlock date. Each one holds 500 Starchrom, so 36 crates fill an 18,000 step.
Can you buy Starchrom with real money? We didn't find an official Crystgin pack for Starchrom in the update notes. Crystgin buys cosmetics in the Shop. Skip third-party "cheap Starchrom" sellers. They aren't official, and using them puts your account at risk.
Did the Starchrom limit change in 2026? The 66,000 monthly ceiling didn't. What changed in Version 2.3.5 (March 25, 2026) was everything around it. The Stellar Stairway and Asterism were removed, Starchrom now drops directly, and blueprints are activated and upgraded with Starchrom on the Blueprint screen.
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