Immortal Sword Series History: Roblox's Rarest Blades

The Immortal Sword series is a line of Roblox back accessories, oversized fantasy blades strapped across the avatar's back, sold in short-lived Limited Unique batches between 2016 and 2019. Nineteen of its members still trade today, and trader consensus reshuffles the RAP ranking hard: several of the rarest 100-copy releases sell for multiples of their listed RAP, while a Halloween outlier with a bloated print run anchors the bottom of the family.

What Is the Immortal Sword Series?

Every item in the family carries the same catalog description ending in the line "This sword hangs on your back, so it's always ready for action," and every one equips to the back accessory slot, meaning it's a cosmetic display piece. The line began with Immortal Sword: The Piece Maker on May 19, 2016, sold for 10,000 Robux in a stock of 100 that reportedly cleared out in seconds. Roblox kept releasing new swords in the same format through sale events for roughly three and a half years, then stopped adding new entries after 2019. Nineteen of the roughly twenty-one items Roblox ever published under the name still carry live RAP and resale data in our database; the rest have gone fully offsale with no resale market to track.

If you're screening the family alongside other Limited gear, the swords collection and the broader Immortal-items collection group them with related blade Limiteds, while classic gear covers the wider back-and-hand-accessory category they belong to.

The Full Immortal Sword Lineup

The table below covers all nineteen tracked members, ordered by trader consensus street value rather than raw RAP. On a family this thin-traded, RAP and consensus diverge sharply for several items, which the next section explains. Live RAP and copy counts are pulled from our items database as of this run.

Copy counts split the family cleanly into two groups. Thirteen items launched in the standard 100-to-120-copy Limited Unique format that defined the series. The other six, Wicked Heart, American Splendor, Burning Embrace, Vlad's Lament, Gingerbread, and especially Infernal Undead, shipped with far larger stock, and that supply gap is exactly what drives the RAP-versus-consensus split below.

Why Trader Consensus Reorders the RAP Ranking

RAP is an exponentially smoothed average of actual sale history, and as a guide to today's price it breaks down fast on a family this old and this thinly traded. Several of the standard 100-copy swords barely change hands anymore, so a single stale sale from months or years back can leave RAP sitting well below what a buyer would actually have to pay today.

The gap is largest on Ivory, Shameless Scimitar, Skull Slayer, 8-Bit Venom's Byte, and Shattered Earth: all five carry a RAP in the middle-to-low end of the family, yet trader consensus pushes each of them meaningfully higher than that RAP suggests, in some cases past swords with double their listed RAP. All five are 100-to-120-copy releases with little recent sale volume, the exact setup where RAP lags furthest behind reality.

The opposite pattern shows up on the higher-supply items. Wicked Heart, at 858 copies, actually trades close enough to its RAP that the two numbers move almost in lockstep, a sign of a genuinely liquid market. The same holds for Vlad's Lament and Infernal Undead. More copies in circulation means more frequent sales, which means RAP has more real data to average against and less room to drift.

RAP on a 100-copy Immortal Sword tells you what last changed hands. On the high-supply swords it is a far more honest live number.

The Outlier: Infernal Undead's Oversized Print Run

Infernal Undead Immortal Sword sits at the bottom of the consensus ranking for a specific, verifiable reason: it launched for Halloween 2018 with a stock far larger than any other member of the family, and Roblox never sold through the full run before eventually converting the unsold balance to resellable stock years later. With well over ten thousand copies in circulation against a family where most siblings capped out at 100, it was never going to trade at gem pricing no matter how good the model looked. It's a useful reminder that "part of a famous series" and "scarce" are two different claims, and only one of them is guaranteed by the name on the item.

8-Bit and Color Variants: Sub-Lines Within the Family

Two entries carry an "8-Bit" prefix: The Pixel Maker and Venom's Byte, pixelated retextures of The Piece Maker and Venom's Bite respectively. Roblox ran similar retro-pixel recolor passes across other item lines around the same period, and within this family the 8-Bit pair trades as its own micro-tier. Pixel Maker in particular holds a RAP close to several of the family's mid-tier originals despite being a reskin. Onyx and Ivory follow the same pattern in miniature: single-color reworks of the base sword shape, priced on their own scarcity.

What Drives the Immortal Sword Premium?

Three things stack on top of each other here. First, format: nearly every release sold out in seconds during limited-window sale events, which is exactly the kind of hard, verifiable scarcity that ages well, unlike items that lingered on sale for months. Second, era: 2016 to 2019 sits in the heart of Roblox's classic Limited period, well before UGC Limiteds existed, so the family reads as an artifact of a trading economy that no longer gets new entries. Third, category: back accessories are a much smaller pool than hats, and a large, ornate sword reads as a visible flex in a way a lot of smaller accessories don't.

A Collector's Outlook

The split inside this family matters more than the family label. A 100-copy Immortal Sword with a thin, stale trade history is a different asset than a 1,000-plus-copy sword that trades close to its RAP, even when both carry the same series name. Anyone chasing the biggest gap between RAP and consensus value should expect to wait for a real offer rather than treat the RAP figure as a target price on a sword nobody's actually selling. This isn't financial advice, and every item in this family is an illiquid, speculative asset regardless of how well-known the series is.

Traders comparing gear Limiteds against hat-based families can track live listings on the deal feed or manage active asks through the Reseller Terminal. For a similar thin-market back-accessory family with the same RAP-versus-reality gap, see our SFOTH sword series history.

FAQ

What is the Immortal Sword series?

A line of Roblox back accessories sold as Limited Unique items between May 2016 and late 2019, most in stocks of 100 that sold out within seconds of release. Nineteen members still carry live RAP and resale data today.

Why does trader consensus rank some swords above others with higher RAP?

Several 100-copy swords, including Ivory, Shameless Scimitar, and Skull Slayer, trade rarely enough that RAP lags behind what buyers currently pay. Trader consensus, which reflects what the market is actually asking right now, pushes those items above swords with a higher but stale RAP.

Why is Infernal Undead Immortal Sword worth so much less than the rest of the family?

It launched for Halloween 2018 with a stock far larger than any other sword in the line and never sold through before Roblox made the unsold balance resellable years later. Its supply is many times larger than a typical Immortal Sword, which caps how high it can realistically trade.

Are the 8-Bit Immortal Swords worth less than the originals they're based on?

Not automatically. 8-Bit: The Pixel Maker and 8-Bit: Venom's Byte are separate 100-to-120-copy Limiteds with their own scarcity and demand.

Is the Immortal Sword series still getting new releases?

No confirmed new entries have shipped since 2019. The family's roughly twenty-one known items are a closed, fixed set, aside from a small number that went fully offsale without ever becoming resellable.