Last checked: September 2, 2026

Untitled Slayer Codes [25K Likes] (September 2026) – Free Reroll Potions

By Money Lord — Founder & Editor | Updated: September 2, 2026

Untitled Slayer has three working codes as of September 2, 2026: !25klikes, !2.5mvisits and !15kfavourites. They pay reroll potions — for your clan, breathing style, Blood Demon Art and appearance — plus short 2x Yen and 2x Drop boosts. Never Robux. MortelCraft's open-world Demon Slayer RPG crossed 3 million visits and 25,000 likes over the weekend, and the newest code is the payout for the second of those.

All Untitled Slayer Codes

Active codes

Two of these three die on September 7. Try Hard Guides dates !2.5mvisits and !15kfavourites to expire that day, and it called !imback correctly on August 28, so its dates are worth trusting. !25klikes carries no published expiry. The Summer Event codes died exactly as this page predicted on August 27: the Roblox virtual-events API had the event ending at 21:45 UTC on August 31, 2026, and both the wiki and Try Hard Guides dropped the pair on schedule.

Expired codes

Every entry above is dead according to two of our three sources. Roblox Den is the outlier and it has got worse: on September 2 it still showed eighteen codes as active, including !imback, both Summer Event codes, !2mvisits and !20klikes — every one of which the wiki and Try Hard Guides agree is dead. We side with the two that agree. One code went the other way: Try Hard Guides carries !iwantdrownedemeralhaori as having expired August 31, but neither the wiki nor Roblox Den has ever listed it, so it is single-sourced and stays out of our archive.

How to Redeem Untitled Slayer Codes

Two redemption boxes exist here, and our sources at first looked contradictory. They are not — the wiki says plainly you can "either go into the menu and click on the settings button, or type them in chat":

1. Join the MBStudio Roblox community first. Both trackers list membership as a hard requirement, and the developer's description says "Join our community for codes".
2. Launch Untitled Slayer on Roblox (place ID 131576522724952).
3. Fastest route: open the normal Roblox chat window and type the code with its exclamation mark — !codenamehere — then press Enter.
4. Menu route: press M, click the settings button on the far left, then type into the "Type code here" field.

The chat method comes from the developer's live description, re-read with an English language header — Roblox silently translates description text, and the string was identical either way, so the ! prefix is literal, not a translation artefact. The M menu path is described identically by all three sources. If a brand-new code fails, the wiki advises retrying in the Hub or a private server; public servers can still be running an older build.

What the Codes Actually Give You

Codes hand out the "Unstable" potion variants, which cannot be traded; the tradeable versions drop from chests at 0.5% to 2% by tier or cost 50–100 Robux each. What they re-roll is the core of the game. A Clan is your second in-game name and carries stat buffs, and the wiki puts the common tier at 84.5% — which is why players burn whole stacks chasing a legendary. A Breathing Reset Potion lets you switch style; the six live ones are Water, Thunder, Flame, Insect, Wind and Mist, each 1,500 Yen plus a stat requirement from its trainer NPC. BDA potions do the same on the demon side. !25klikes gives an hour each of 2x Yen and 2x Drop, against 399 Robux for the permanent 2x Yen pass as of September 2, 2026.

How to Get More Untitled Slayer Codes

Untitled Slayer is made by MortelCraft, a single developer, and ships through the MBStudio community (group ID 11630624), 36,992 members as of September 2, 2026 — the group the description links, and the one you must join to redeem.

Codes are announced in the community Discord, which the wiki points to for update logs. The invite resolves to a real, populated guild named "Untitled Slayer" with 8,104 members and 879 online on August 27, 2026, self-described as the game's official server. One honesty note: the Discord invites API shows the inviter is not the group owner — it was created by a founding wiki editor, not MortelCraft. Plainly the community hub, but we cannot prove developer ownership, so we will not claim it.

The code names reveal the pattern better than any schedule. Eight of the fifteen codes here are milestones — !7klikes, !20klikes, !25klikes, !4kfavourites, !15kfavourites, !1.5mvisits, !2mvisits and !2.5mvisits — and the live counters track that ladder exactly: 25,251 likes, 18,804 favourites and 3,028,329 visits as of September 2, 2026. Three are patch or apology codes, two were event codes. This is the ladder working in public: on August 27 we wrote that the next code was due at 3 million visits. The counter passed it — but the developer paid out the 25,000-likes rung instead, and no !3mvisits exists on any source, so we are not printing one. Favourites, at 18,804, is the next rung to watch.

Why Aren't My Untitled Slayer Codes Working?

You are not in MBStudio — the most common cause here, and unusual among Roblox games. You are on an old server; rejoin through the Hub or a private server. The code is dead — Roblox Den's list is visibly behind the wiki's, so a code copied from an out-of-date page will simply fail. Punctuation: these codes carry a leading exclamation mark and !2.5mvisits also has a full stop; both must survive the paste. Roblox Den calls the codes case-sensitive, but neither the wiki nor the developer says so — everything is published in lowercase, so lowercase is safe. One use per account.

When Are New Untitled Slayer Codes Released?

There is no calendar, and the wiki's own codes editor writes that codes "drop too often" to keep up with. The triggers are milestones, patches and events, and the game is still shipping: the current build is Update 3.4.3, which added the Summer Event plus PvP changes including move wind-ups and a new ragdoll. The wiki also names the next major drop — Update 4.0, bringing the first raid, Mugen Train, and three new styles (one breathing, two Blood Demon Arts). Version bumps have carried codes before, so a successor to !update3.3 is a reasonable expectation rather than a promise.

Untitled Slayer in Numbers

All figures pulled live from the Roblox API on September 2, 2026: 3,028,329 visits, 18,804 favourites, and 25,251 likes against 1,357 dislikes for a 94.9% rating. It launched on September 24, 2025 and servers cap at 30 players.

Be realistic about the player count. Two pulls on the morning of September 2 both returned 65 concurrent players, down from the 75–90 we saw six days earlier — a small, dedicated audience rather than a chart-topper, and we would rather say so than dress it up. It is genuinely still being worked on, though: the updated stamp moved on August 30, 2026. The badges show the funnel, and every rung grew over those six days: 452,287 accounts hold Tutorial, 29,138 cleared Final Selection to become a Slayer, 9,919 took the Evil Path to become a Demon, and just 68 have "Kill the owner". All eight game passes are on sale, from 50 Robux (Donation) to 699 Robux (Private Servers), as of September 2, 2026 — which corrects the 199–499 range this page carried on August 27, a range that had missed both the cheapest and the dearest pass. No code here grants a pass, Robux, or any tradeable item.

How We Verified This List

We started with primary sources: the live Roblox listing for universe 8790251483, read with and without an English language header to rule out auto-translation corrupting a code word; the virtual-events API, which supplied the Summer Event window and the developer's "2 new codes" line; and the badge, votes and game-pass endpoints. Only then did we cross-check three code sources against each other. Our full standard is on the how we verify codes page.

The three sources, named. The Untitled Slayer Fandom wiki Codes page, read through the MediaWiki API on September 2, 2026 — a real wiki with hundreds of item and mechanic pages, not a stub, on a domain registered in 1996. Try Hard Guides (tryhardguides.com, registered April 2020, independent of the studio), which stamps itself August 31, 2026 at 11:01pm MST. Roblox Den (robloxden.com, registered April 2020, Dantoo Ltd), which stamps itself 02:18 on September 2, 2026 — a fresh timestamp on a stale list, which is exactly why we do not let it outvote the other two. All three link the same place, 131576522724952, so none is covering a different "Slayer" game.

What we threw out. Try Hard Guides' expired archive now runs to twenty-one entries against our twelve — we carry only the ones a second source also calls dead, rather than reprinting a padded archive unverified. Roblox Den's eighteen "active" codes went the same way in the other direction. We also discarded a YouTube "all working codes" video posted the day before this page was created: it names no source and could not be tied to this place ID.

Frequently Asked Questions

Not affiliated with Untitled Slayer, MortelCraft, MBStudio, or Roblox Corporation. Code availability can change at the developer's discretion.