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Trails in the Sky 2nd Chapter has optional digital cosmetic DLC, including a What-If Costume Set with alternate character looks and a separate Glasses Set B. The What-If set requires the base game, is included in the Season Pass, and is also sold on its own—so check your library before buying it separately.

What the new DLC includes

What-If Costume Set

The set adds alternate costumes for Estelle, Joshua, Scherazard, Olivier, Kloe, Agate, Tita, and Zin, along with additional hair and accessory items, including a mask and sunglasses. Steam describes it as “A costume item set that lets certain characters change into their what-if costumes.” The items are digital in-game cosmetics, not physical products. Steam’s listing

Glasses Set B

Glasses Set B is an attachment set with several designs that let characters wear glasses in the game. It is cosmetic eyewear, not a set of real-world glasses. Steam’s DLC catalogue

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How to claim and equip the What-If items

  1. Launch Trails in the Sky 2nd Chapter and open the in-game ITEM menu.
  2. Select the DLC tab to claim the set’s items.
  3. Open the COSTUME menu to equip the available cosmetics.

Do you need the Season Pass?

No. The What-If Costume Set can be purchased separately, but Steam also lists it as included in the Season Pass. If you already own the pass, check your game library or DLC entitlement before buying the set again. The available listings do not establish which option is better value overall, since they do not provide a fuller comparison of the pass’s contents and value. Steam’s What-If Costume Set listing

#1 Best Overall
Trails in the Sky 2nd Chapter - Switch
  • CONTINUE YOUR 1ST CHAPTER JOURNEY: By carrying over your clear data from 1st Chapter, you can obtain exciting bonus items that will let you progress through the story more smoothly
  • MORE COMBAT OPTIONS THAN EVER BEFORE: Overpower your enemies with new Crafts and S-Crafts! Link your characters' attacks during Quick Battles with the new Brave Rush, and make full use of the orbment system for access to Arts
  • AN UNFORGETTABLE STORY: Dive into an intricately woven narrative to uncover the conspiracies threatening the Kingdom of Liberl
  • EXPANSIVE SIDE CONTENT: Enjoy a variety of new content in the sequel, including minigames like fishing and poker, cooking with your companions, and fan-favorite characters joining as playable party members
  • Experience the expansive combat system, richly realized world, and stirring story of the 2nd chapter of the Trails series

Which game editions are required?

The What-If set requires Trails in the Sky 2nd Chapter. Nintendo’s Canadian listing identifies the original Nintendo Switch game and the Switch 2 Edition as compatible base-game editions. The add-on itself is digital content, not a standalone game. Nintendo Store Canada listing

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Release dates vary by storefront

The official listings show different dates, and they do not explain the discrepancy. Use the date shown for the specific platform or storefront rather than treating any one date as a universal release date.

Listing Date shown
Steam DLC catalogue September 16, 2026
Steam What-If Costume Set item page September 30, 2026
Nintendo Store Canada October 1, 2026

These dates are transcribed from the respective listings checked October 4, 2026; no explanation for the differences is provided. Steam catalogue and item listing; Nintendo Store Canada

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