Diablo 4 Season 15: Season of Hell's Legacy

Diablo 4 Season 15 started on Sep 15, 2026. Blizzard hasn't announced an end date. Our estimate is ~Dec 1, 2026: S16 start of Dec 1 is from in-game data, not confirmed.

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Season of Hell's Legacy Diablo IV · Season 15

~38days left

Sep 15, 2026 Day 40 ~Dec 1, 2026

S16 PTR (PC) — starts in 2d 19h · Oct 27, 10:00 AM

S16 start of Dec 1 is from in-game data, not confirmed. news ↗

Dates

Start: Sep 15, 2026
End: ~Dec 1, 2026 (estimate)
Length: 40 days so far
Patch: 3.2.1
Theme: Players collect Splinters of Evil from echoes of Diablo, Baal and Mephisto to gain a Prime Evil's Iconic Power, for Diablo's 30th anniversary.

All Diablo IV seasons →

Sources

https://news.blizzard.com/en-us/article/24301509/diablos-next-era-revealed-at-blizzcon-2026-opening-ceremonies-recap
https://news.blizzard.com/en-us/article/24295394/celebrate-30-years-of-diablo-in-season-of-hell-s-legacy
https://news.blizzard.com/en-us/article/24302578/the-3-3-0-ptr-what-you-need-to-know
https://d4guides.gg/en/news/diablo-4-season-15-season-of-hell-s-legacy-start-date-content-and-rewards