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MM2 September 17 Trading Watch: Chroma Sun Set Reverses +500 as Icecream Crashes −200 — Celestial Step Two on Day 25

Twenty-five days after Summer Event 2026 ended, Murder Mystery 2's September 17 Supreme batch repriced 19 rows — the 2025 Sun Set chroma lane finally printed green while post-event summer chroma kept bleeding. Chroma Icecream led homepage drops at −200, Celestial Set stepped down again at demand 5, and Raygun added another +50 at demand 6.

Last updated: September 17, 2026

Twenty-five days after Summer Event 2026 closed, Murder Mystery 2 traders are seeing a split tape: the 2025 Sun Set chroma line finally printed green while live-event summer chroma keeps sliding. The September 17, 2026 Supreme batch logged 19 repriced rows on MM2 Calculator’s value changes log: Chroma Sun Set led gains at +500 to about 17,500, with Chroma Sunset Knife and Chroma Sunrise Gun each adding +250 at demand 5/10. On the same day, the homepage and MM2 Chroma values panel flagged M2 Chroma Icecream at −200 (~−9.5%) to about 1,900, Celestial Set printed a second red line (−200 to ~5,400–5,450) at demand 5/10, and Chroma Beach Set followed September 16’s crash with another −100. Raygun grinded +50 to roughly 1,950–2,000 at demand 6/10, and Chroma Evergun dropped another −2,000 to about 58,000–60,000.

Quick answer: Sun Set chroma bounced with +500 gains, but summer chroma such as M2 Chroma Icecream and Chroma Beach Set kept falling. Celestial Set printed a second red line after its demand-6 exit, while Raygun and the Chroma Blizzard lane stayed comparatively stronger.

Run both sides through the free MM2 trade calculator before treating last week’s screenshots as today’s board.

September 17 at a glance — Day 25, Sun chroma IN vs summer chroma OUT

Summer Event ended on August 23, 2026. Supreme has repriced on a rough one- to two-day cadence since then. September 16 was a beach-and-constellation headline batch; September 17 rotates the story toward seasonal chroma divergence — Sun Set chroma bouncing after weeks of red rows, while 2026 summer chroma and demand-5 upgrade clusters keep correcting.

Lane September 17 read Demand / stability
Sun Set chroma IN — first green cluster in weeks Chroma Sun Set ~17,500 (+500); Chroma Sunset ~6,750 (+250); Chroma Sunrise ~10,750 (+250) 5/10 on all three · still below August highs
Post-event summer chroma OUT — Icecream + Beach M2 Chroma Icecream ~1,900 (−200, homepage); Chroma Beach Set ~2,750–2,950 (−100 batch) 5/10 on chroma reads · Icecream not in Sep 17 Supreme row list
Playbook step two — Celestial + Constellation base Celestial Set ~5,400–5,450 (−200); Constellation Gun ~2,900 (−100) 5/10 on both · Celestial lost demand 6 on Sep 14
Classic shelf IN — Raygun + Alien Set Raygun ~1,950–2,000 (+50); Alien Set ~3,750–3,800 (+100); Alienbeam ~1,800 (+50) 6/10 Raygun · 6/10 Alien Set · 5/10 Alienbeam
Winter prep pause — Chroma Blizzard flat Chroma Blizzard Set / Gun unchanged in Sep 17 batch after four green batches 6/10 · digest day on winter chroma
High-end chroma OUT — Ever cluster Chroma Evergun ~58,000–60,000 (−2,000); homepage also flags Chroma Ever Set ~99,000 (−2,000) and Chroma Traveler's Gun ~155,000 (−5,000 sync) 7–8/10 · Underpaid For tags on several mega caps

No verified Nikilis patch note or Roblox game-page announcement tied to September 17 was found in first-party channels checked for this draft. Numbers below are community value-list data on MM2 Calculator — not official Roblox prices.

Chroma Sun Set +500 — why the Sun line finally printed green

For most of September, the Sun Set playbook meant pain for holders of 2025 Halloween chroma: after base Sun Set lost demand 6 in early September, Supreme printed repeated red rows on Chroma Sun Set, Chroma Sunrise, and Chroma Sunset — often −250 to −750 per batch through September 8–14. September 17 is the first batch in that window where all three chroma pieces in the Sun cluster moved green together.

In the Supreme log dated September 17:

  • Chroma Sun Set moved from about 17,000–17,250 → 17,500 (+500)
  • Chroma Sunset Knife moved from 6,500 → 6,750 (+250)
  • Chroma Sunrise Gun moved from about 10,500–10,750 → 10,750 (+250)

Trade read: This is a relief bounce, not a full reversal to August peaks near 19,000+ on Chroma Sun Set. Demand is still 5/10, and base Sun Set has not reclaimed demand 6. Treat September 17 as evidence that oversold Sun chroma can snap back on a quiet batch — but do not anchor upgrade offers to pre-playbook screenshots. If you are rotating out of bleeding summer chroma, Sun Set chroma is now a relative IN lane versus Beach or Icecream, not an automatic demand-6 upgrade target.

How Sun Set chroma differs from Raygun today

Raygun sits on the opposite side of the demand curve. The September 17 batch added another +50 to about 1,950 at demand 6/10, with the Raygun value page tagging stability Doing Well and confirming the move versus the prior snapshot. Raygun has printed greens in multiple consecutive post-event batches since demand flipped to 6 on September 14. Sun Set chroma is bouncing at demand 5; Raygun is grinding at demand 6 — compare both on the MM2 Godly values list before you swap a full Alien Set for a partial Sun chroma offer.

M2 Chroma Icecream −200 — summer chroma still unwinding

While Sun Set chroma recovered, 2026 summer chroma kept sliding. MM2 Calculator’s September 17 homepage “falling” panel lists M2 Chroma Icecream at about 1,900 with a −200 (−9.52%) move and demand 5/10. The chroma values page also flags Icecream as the biggest chroma drop on the day. That line did not appear as a Supreme value row in the September 17 batch table — treat it as a site-level sync or secondary chroma update, not a confirmed Supreme batch tick unless a future log row appears.

Context matters: base Icecream Godly has been stuck at low demand for weeks (demand 2/10 on recent batches), while Chroma Icecream held up longer as a bundled summer hold. September 17 suggests that premium is fading without a live summer loot table — similar to the Beach chroma unwind that accelerated on September 16.

Trade read: If you still value Chroma Icecream like mid-event summer chroma, mark inventory to the new ~1,900 midpoint and avoid pairing it with demand-6 classics in “fair” bundles unless you discount for stability. Rotations that worked on September 16 — Alien Set, Raygun, or flat-but-firm Chroma Blizzard — still look cleaner than averaging down into double-red summer chroma.

Celestial Set −200 — demand-5 follow-through continues

Celestial Set lost demand 6 → 5 on the September 14 batch. September 16 printed the first value cut (−150); September 17 added a larger −200 to about 5,400–5,450 while demand stayed at 5/10. That two-step pattern mirrors what traders already saw on Vampire's Gun, Evergreen, and base Sun Set after their demand downgrades earlier in the month.

The same batch cut base Constellation Gun another −100 to 2,900 at demand 5/10, while Chroma Constellation Gun was unchanged on September 17 after the −1,000 tick to 31,000 on September 16. Upgrade chroma at demand 7 is pausing; the base Godly and Celestial set cluster is still absorbing the downgrade follow-through.

Trade read: Do not treat Celestial as a demand-6 climb play until the list upgrades it again. Offers that bundle Celestial with Constellation base pieces should use September 17 marks, not September 10–12 screenshots when Celestial was still demand 6 and printing greens.

Chroma Beach Set −100 — second dip after the −300 crash

September 16’s headline was a −300 crash on Chroma Beach Set. September 17 added another −100 to about 2,750–2,950 at demand 5/10, with the homepage still listing Chroma Beachy among falling pieces. The set page was readable on September 16; if your trade partner cites an older Beach bundle near 3,150, they are at least one batch behind.

Compare Beach’s path to Chroma Blizzard, which printed no change on September 17 after four consecutive green batches — capital is no longer adding to winter chroma every day, but it is not reversing yet either. Seasonal rotation is now three lanes: Sun chroma bounce, summer chroma bleed, winter chroma hold.

Chroma Evergun −2K and Traveler's sync — mega-cap caution

High-end chroma continued to soften. The September 17 batch cut Chroma Evergun −2,000 to about 58,000–60,000 at demand 7/10 — the third −2,000 print in ten days on that gun. The homepage also flagged Chroma Traveler's Gun at about 155,000 with a −5,000 move and demand 8/10; that Traveler's chroma line was not in the September 17 Supreme batch table, while base Traveler's Gun did print −100 to 5,300 at demand 5/10.

The Chroma Traveler's Gun value page still shows mixed static copy (for example a 220K headline value versus a 155K “today” decrease line). For trades, trust the September 17 homepage and changes log over stale FAQ text on the item page.

Trade read: Mega-cap chroma offers need extra margin. Underpaid For tags on several high-demand chromas mean realized trades can land below list even when demand looks strong on paper.

Vampire lane still grinding lower at demand 5

September 17 also nudged the Vampire playbook forward: Vampire's Set −25 to about 3,325–3,375 and Vampire's Gun −25 to about 1,725–1,775, both still at demand 5/10. These are small ticks, but they confirm the lane is still drifting after September 8’s larger cuts — not ready for a Sun-style chroma bounce yet.

What traders should do before the next batch

  1. Re-mark Sun Set chroma — September 17 greens are real in the Supreme log, but demand 5 caps how far upgrade offers can stretch.
  2. Discount summer chroma holds — Icecream and Beach both printed red on September 17; do not pair them with demand-6 classics without a deliberate overpay.
  3. Treat Celestial as step-two OUT — second red batch after demand 5; Constellation base −100 reinforces the same cluster.
  4. Keep Raygun and Alien Set on the IN short list — both printed green again with demand 6 on Raygun and Alien Set.
  5. Verify mega-cap chroma on the homepage — Traveler's and Ever lines can sync outside the daily Supreme row table.
  6. Ignore unverified Season 2 dates — community sites speculate about a fall Season 2 window; no official Roblox game-page announcement confirmed a release date on September 17.

Murder Mystery 2 values are community estimates. Demand, stability, and batch timing decide real trades more than any single number — use the calculator, then confirm the latest row date on the changes log before you accept.

Quick FAQ

Did Sun Set chroma reverse its decline?

It printed a coordinated green move in the September 17 batch: Chroma Sun Set gained 500, while Chroma Sunset and Chroma Sunrise each gained 250. Demand remained 5/10, so this is a relative bounce rather than a confirmed return to August highs.

What happened to Chroma Icecream?

M2 Chroma Icecream fell 200 to about 1,900 on the homepage and Chroma values context. It was not listed as a September 17 Supreme row, so treat it as a site-level update rather than a confirmed batch tick.

Is Celestial Set still a demand-6 item?

No. Celestial Set remained around 5,400–5,450 after a second red value line and is listed at demand 5/10. Compare it with the current demand-6 Raygun, Alien Set, and Chroma Blizzard lanes before trading.

Sources and Update Policy

This article uses MM2 Calculator’s September 17 value changes batch, homepage and Chroma list updates, and the item pages listed in the audit notes. Confirmed Supreme rows are kept separate from homepage-only syncs and cross-list references.

MM2 values, demand labels, stability reads, and rotation interpretations are unofficial community estimates, not official Roblox prices or guaranteed trade outcomes. Recheck current pages and compare both sides before making a trade decision.