If you just unlocked the Nomadic Envoys and saw the wall of ARC materials Ermal wants, you already hit the question the whole community is asking: buy Stash Expansion or the Expedition Vault first — and how much item value do you actually need? Short answer: buy the first Expedition Vault slot before any Stash Expansion. The Vault carries your best gear through the Expedition reset; vendor Stash Expansion wipes the moment you depart on an Expedition. And the numbers trip everyone up — Ermal's first upgrade costs 200,000 item value, not the "100k" figure players quote (that's a 100,000 damage-dealt Expedition milestone). This guide breaks down exactly what each upgrade does, what it costs, the reset trap that catches most Raiders, and the fastest way to farm the material value the barter demands.
TL;DR — Stash Expansion vs Expedition Vault
Buy the Expedition Vault first. It carries your best item through the Expedition reset; Ermal's Stash Expansion wipes on reset. Each upgrade costs 200,000 item value (not the "100k" players quote), paid in ARC materials to the trader Ermal at Level 25+ in Speranza.
- Buy first: the Expedition Vault — one slot preserves your single best item, carrying it over through an Expedition reset.
- Stash Expansion: adds +12 stash slots (base stash is 64), upgradeable twice — but the vendor version resets when you depart on an Expedition. The +12 stash you earn for completing an Expedition is the part that permanently stays.
- Where: trader Ermal (the Nomadic Envoys), in the Traders area of Speranza, unlocked at Level 25+. He does not appear Topside.
- The cost gate: everything is priced in item value, not Coins — 200,000 item value for the first Stash Expansion (400,000 for the second) and 200,000 per Expedition Vault slot, paid in eligible high-tier ARC parts (e.g. Bastion Cells and Rocketeer Drivers). The "100k" number players ask about is the 100,000 damage-dealt Expedition milestone reward, not Ermal's price.
- Community verdict: the fees are steep; vault a prized weapon first, expand stash later once your material income is stable.
Everything below is verified against the ARC Raiders Wiki 1.29.0 patch notes (which introduced the Nomadic Envoys) and the official arcraiders.com/news release log.
What are the Nomadic Envoys and Ermal?
The Nomadic Envoys are a travelling trader faction that made camp in Speranza. Their frontman, Ermal, sits in the Traders area of your underground hub and only opens for business once you reach Level 25. He never spawns on a Topside map — this is a base-side barter vendor, not a loot event.
What makes Ermal different from Shani or your other traders is his currency: he doesn't take a clean coin price. He barters high-value ARC materials and stockpiled rare weapons in exchange for two things you can't get anywhere else — extra stash space and Expedition carry-over slots. The patch notes put it plainly:
"One of a group of Nomadic Envoys, Ermal, has made camp in Speranza... Raiders who have reached Level 25 can barter high-value ARC materials and any stockpiled rare weapons in exchange for lucrative offerings: Expanded Stash space (resets if you depart on an expedition), Expedition Vault access — enabling Raiders to safely store up to 5 of their most prized items for retrieval post-Expedition."
— ARC Raiders 1.29.0 patch notes
That one parenthetical — "resets if you depart on an expedition" — is the single most important line in the whole system, and it's why so many Raiders feel burned after their first Expedition.
Stash Expansion: what it does (and the reset trap)
Your base stash in ARC Raiders holds 64 slots. If you scavenge hard, that fills fast, and selling everything to make room kills your crafting and Free Loadout runs. Ermal's Stash Expansion is the fix — sort of.
- Effect: adds 12 stash slots per purchase.
- Upgrades: can be bought twice, for up to +24 slots total.
- Cost: 200,000 item value in eligible high-tier ARC parts for the first tier, 400,000 for the second (ARC Raiders Wiki: Ermal) — there's no clean Coin price, you pay in materials (check the eligible parts shown in Ermal's menu before you commit).
Here's the trap: the Stash Expansion you buy from Ermal resets the moment you depart on an Expedition. You pay a fortune in materials, enjoy the extra room, then set off on your next Expedition and it's gone. The stash space that permanently sticks is the +12 bonus you're rewarded for completing an Expedition — that's counted as kept progress and stays on your account, unlike Ermal's bartered version. The community caught this the hard way, as one r/ArcRaiders thread put it:
"The stash expansion you buy from the vendor goes away on expedition..."
So vendor Stash Expansion is really a within-cycle convenience, not a permanent upgrade. Treat it like renting space for the current Expedition, not buying it forever.
The three kinds of stash space (why players get confused)
Most of the confusion on r/ArcRaiders comes from not realising there are three separate things all called "stash space":
- Base stash (64 slots) — always yours, never resets.
- Expedition-reward stash — the +12 bonus slots granted for completing an Expedition. This is permanent kept progress — it stays on your account.
- Vendor Stash Expansion (Ermal) — the +12/+24 you barter for. Wipes every Expedition.
When a Raider says "my stash shrank after the Expedition," they almost always paid Ermal for type 3 and assumed it behaved like type 2. Know which one you're buying before you hand over 200,000 in item value — it's the single most expensive misunderstanding in the whole trader.
Expedition Vault: the upgrade that actually survives
The Expedition Vault is the opposite — and it's why it should be your first purchase. Each vault slot lets you store one prized item that carries over to your next Raider after an Expedition reset, working like a guaranteed safe pocket that survives the wipe.
- Slots: buy one at a time, up to 5 total.
- Effect: each slot carries one item (a top-tier weapon, a rare augment, a legendary blueprint) over to your next Raider after the reset.
- Cost: 200,000 item value per slot — and since Store Update 1.30.0, all five slots cost the same 200,000 (the later slots used to be pricier). Pay it in high-tier ARC parts like Bastion Cells and Rocketeer Drivers.
- Why it matters: the difference between resetting naked and resetting with your best weapon already in hand.
| Feature | Stash Expansion | Expedition Vault |
|---|---|---|
| What it gives | +12 stash slots (base 64) | Preserve 1 item per slot |
| Max purchases | 2 (up to +24 slots) | 5 slots |
| Survives Expedition reset? | ❌ No (vendor version wipes) | ✅ Yes (your stored items carry over) |
| Cost (item value) | 200k (tier 1) / 400k (tier 2) | 200k per slot (all 5, since 1.30.0) |
| Best for | Extra room this cycle | Protecting your best gear through the reset |
If you only have the materials for one purchase, the Vault wins every time — it's the one upgrade that carries value you already earned through the reset instead of setting you back to zero.
How much item value do you need? (100k vs 200k, explained)
First, clear up the number confusion, because it's everywhere on r/ArcRaiders. Ermal's barter is priced in item value: 200,000 for the first Stash Expansion (400,000 for the second) and 200,000 per Expedition Vault slot. The "100k" figure players keep quoting is a different system — the 100,000 damage-dealt milestone reward inside an Expedition — not what Ermal charges. So if you're "sitting on 31k" and eyeing an Ermal upgrade, the real target is 200,000, and it isn't a Coin balance — he wants high-value ARC materials and rare weapons whose combined value clears the bar. To build that value fast:
- Farm Epic/Legendary ARC parts, not commons. Bastion Cells, Rocketeer Drivers and other high-tier boss drops carry most of the barter weight. Ten stacks of scrap won't move the needle; three legendary components will.
- Hunt the machines that drop them. Bastions, Rocketeers and boss-tier ARC (Queen, Matriarch) are the value piñatas. Prioritise leg-joint and canister weak points to down them efficiently.
- Bank the Rare weapons you won't use. Ermal's high-tier trades take stockpiled Rare-rarity weapons (not Legendaries, and not weapon mods) — that duplicate Rare rifle sitting in your stash is item value, not clutter.
- Run high-value maps. Endgame maps like Stella Montis (Level 25+) and Blue Gate loot rooms tend to return richer Epic/Legendary hauls per raid.
- Don't burn materials on vendor Stash Expansion first — it resets. Every part you spend there is value you can't put toward a Vault slot that actually survives the reset.
Realistically, closing a 31k → 200k value gap by pure solo scavenging is several focused sessions of boss farming and high-map runs — which is exactly the grind most players want to skip. If you'd rather clear the barter wall this week instead of next month, stocking up on ARC Raiders Materials gives you the high-tier ARC parts Ermal actually barters for — no dozen boss-farm raids required — and ARC Raiders Blueprints let you re-kit instantly after an Expedition reset so an empty Vault doesn't leave you starting naked. Browse all ARC Raiders services if you want a full head start.
Buy order: what to unlock first
For most Raiders hitting Level 25, this is the optimal sequence:
- First Expedition Vault slot — protect your single best weapon or augment. Highest value-per-material spend, because it's the only upgrade whose payoff survives the reset.
- Second and third Vault slots — once material income is stable, secure your core loadout (weapon + augment + a legendary blueprint).
- Stash Expansion (tier 1) — only after your Vault is set, and only if slot pressure is actively forcing bad sell decisions this Expedition cycle. Remember it wipes on reset.
- Remaining Vault slots (4–5) — round out full-kit protection before your next reset.
The community consensus, echoed by trade guides that flat-out say to "skip him until the devs lower the fees," is that the Vault is worth the pain and vendor Stash Expansion rarely is. Spend on what survives.
FAQ
Does ARC Raiders Stash Expansion reset after an Expedition? Yes — Stash Expansion purchased from Ermal (the Nomadic Envoys) resets when you depart on an Expedition. The +12 stash space you earn for completing an Expedition is kept progress and stays on your account; it's only Ermal's bartered expansion that wipes. Items placed in the Expedition Vault, by contrast, carry over to your next Raider.
How many Expedition Vault slots can you buy? Up to 5, purchased one at a time. Each slot preserves a single item through the Expedition reset, so five slots can carry your full core kit over to your next Raider.
Where do I find Ermal and the Nomadic Envoys? In the Traders area of Speranza, your underground base, unlocked at Level 25+. Ermal does not appear on any Topside map — he's a base-side barter vendor only.
Is it 100k or 200k item value for Ermal? Ermal's upgrades cost 200,000 item value each (the second Stash Expansion is 400,000), not 100k — the "100k" figure players quote is a 100,000 damage-dealt Expedition milestone reward. He prices everything in item value, not Coins, taking high-value ARC materials and stockpiled rare weapons. Farm Epic/Legendary parts (Bastion Cells, Rocketeer Drivers and similar high-tier boss drops) from Bastions, Rocketeers and bosses, bank duplicate rare weapons, and run high-tier maps like Stella Montis. Avoid spending materials on the resetting vendor Stash Expansion first.
Is Stash Expansion or the Expedition Vault better? The Expedition Vault is the better first buy for almost everyone — your stored items carry over through the Expedition reset. Stash Expansion only helps within the current Expedition cycle because the vendor version wipes on reset.
How much does an Expedition Vault slot cost? 200,000 item value per slot, paid in Epic/Legendary ARC parts such as Bastion Cells and Rocketeer Drivers. Since Store Update 1.30.0 all five slots cost the same 200,000 (they used to scale higher). Check the eligible parts shown in Ermal's menu in-game before committing.
