Nth Metal is the currency that decides how fast your roster actually improves, and it is the one most players spend badly. Not because they are careless — because the game presents several ways to spend it that all feel productive, and only some of them are.
This guide covers what Nth Metal genuinely buys, how to earn it without opening your wallet, and the specific spending mistakes that cost the most.
What Nth Metal actually is
Nth Metal is the premium currency in Injustice: Gods Among Us Mobile. That word matters, because it tells you what the game intends it for: the things that meaningfully change your account rather than the things that tick it along.
Concretely, it goes on:
- Nth Metal chests — the pulls that can produce characters and gear you have no other route to
- Character promotions — pushing a character up through its star ranks
- Gear rerolls — rerolling the stats on a piece you already own
- Premium store offers — selected bundles that only accept Nth Metal
What it is not for is routine progression. Levelling a character, levelling and fusing gear, most standard store tabs — those run on Power Credits, which is a different currency with a different economy and a different set of mistakes attached.
Confusing the two is the single most common reason people buy the wrong thing. If your roster is broad but everything on it is under-levelled, Nth Metal will not fix that. If you have a levelled roster and simply nothing better to put in it, Nth Metal is exactly what you need.
How to earn it without paying
The legitimate routes are unglamorous and they work. In rough order of reliability:
Daily missions. The most dependable source, and the one people skip when they are busy. The individual amounts are small; the compounding over a month is not.
Events. Limited-time events typically carry the largest Nth Metal rewards available to a free player. If you only engage with the game seriously during events, you will still accumulate a reasonable amount.
Multiplayer seasons. Season rewards scale with placement, which makes this the route that rewards actually getting good rather than just showing up — see the multiplayer guide for how to place higher.
Limited-time challenges. Sporadic, sometimes generous, and worth checking for rather than waiting to stumble into.
None of these are fast. That is deliberate — the friction is precisely what the in-app purchases exist to relieve, and understanding that helps you decide whether you would rather spend time or money.
The spending mistakes that cost the most
Pulling chests with no target
The biggest one. Opening chests because you have the currency, rather than because there is something specific you want, converts a finite resource into a random outcome you had no plan for.
Before a pull, be able to name what you are hoping for and what you will do with it. If you cannot, the pull is entertainment rather than progression — which is fine, as long as you know that is the trade you are making.
Rerolling gear you will never field
Gear rerolls are seductive because the improvement is visible immediately. But rerolling a piece that is not on a character you actually play is spending premium currency to improve something that will sit in your inventory.
Reroll the gear on your working team. Leave the rest alone until it earns a slot.
Promoting breadth instead of depth
Spreading promotions thinly across many characters produces a roster of mediocre ones. Concentrating them produces a team that wins — Injustice character promotion covers what they cost and how to choose.
This is counterintuitive because a broad roster looks stronger on the collection screen. It is not. Three properly promoted characters beat nine half-promoted ones in every mode that matters.
Buying a premium offer because it is expiring
Scarcity pressure is a sales technique, not a signal of value. An expiring bundle you did not want an hour ago is still a bundle you do not want.
Nth Metal versus the alternatives
If you are deciding where to put finite resources, this is roughly how the three currencies compare.
| Currency | Type | Pays for | Buy it when |
|---|---|---|---|
| Nth Metal | Premium | Chests, promotions, gear rerolls, premium offers | Nothing you own is good enough |
| Power Credits | Soft | Character levelling, gear levelling and fusion, standard store | Everything you own is under-levelled |
| Alliance Coins | Alliance | Alliance store items | Your alliance is genuinely active |
Alliance Coins deserve a note: they are only as useful as your alliance is active. In a quiet alliance they accumulate into a currency you cannot meaningfully spend, which makes them the last of the three to prioritise — Injustice Alliance Coins covers when they are worth it and when they are not.
If you would rather not grind for it
We sell Nth Metal as a service, so treat this section as what it is — but the reasoning is checkable either way.
The honest case for buying it is time. The free routes work; they are just slow by design. If you have limited hours and would rather spend them playing the parts of the game you enjoy than farming dailies, that is a legitimate trade.
The honest case against is that if you have not worked out what you are short of, buying more currency will not fix it. We would rather point you at the cheaper answer than sell you the wrong one, which is why the one-line test above exists.
A few practical notes if you do order: currency is the fastest thing we deliver, usually around twenty minutes once confirmed. We support both Android and iOS. Checkout needs a Discord ID or Telegram username because a person handles the order. And new customers get a first-order bonus on top of whatever they buy — 65,000 Nth Metal, 40,000,000 Power Credits, and 500 Energy, once.
Before ordering anything, it is worth reading are Injustice mods safe? — it covers what the actual risks are rather than the version that helps us close a sale.
Where to go next
- Injustice Power Credits — the other half of the currency picture, and the one that gates levelling
- Injustice gear shards — where gear resources actually go and why breakpoints matter
- How Injustice mods work — the process end to end, if you are considering ordering
- Browse Injustice currency — Nth Metal, Power Credits, and Alliance Coins listings