Mortal Shell 2 発売日: 2026年8月20日

When did Mortal Shell II come out?

Mortal Shell II released on August 20, 2026. The date is confirmed by the official Steam store page and by the official Mortal Shell website, which carries the "now globally released" launch messaging. The official site is also localised into Simplified and Traditional Chinese.

It is a full release, not an Early Access launch — the sequel shipped complete on day one across all supported platforms.

Platforms and price

Detail	Value
Release date	August 20, 2026
Platforms	PC (Steam), PS5, Xbox Series X|S
Steam price	$49.99
Players	Single-player
Developer	Cold Symmetry
Publisher	Playstack
Genre	Action RPG / Souls-like
Steam achievements	53
Interface languages	15 (including English, German, Japanese, Spanish, Simplified and Traditional Chinese)

Mortal Shell II is a paid premium release. There is no free-to-play tier, and no public demo has been confirmed — see the Demo page for the current status.

How the launch performed

The launch window was strong for a AA Souls-like. SteamDB shows an all-time peak of approximately 44,486 concurrent players, reached on August 23, 2026 — three days after release, which is the weekend bump rather than day one. The same source showed a 24-hour peak around 23,527 at the time this page was last verified, so the player base held well past launch.

On Steam the game sat at Mostly Positive, with roughly 78% positive across about 5,608 reviews at the time of writing. Review counts and percentages move daily, so treat them as a snapshot.

What shipped at launch

The scale of the shipping build is the headline: 8 playable Shells, more than 60 handcrafted dungeons, and 53 Steam achievements. Reviews note that the sequel features significantly more boss encounters than the first game and a much more spread-out, diverse world than its predecessor.

The first Balance Patch has already landed, covering economy changes, boss and enemy nerfs, and weapon and Tarstone buffs. That is unusually fast post-launch support and a good sign for the game's longevity.

Was there any pre-release access?

Yes, in limited form. A community completion thread describes finishing the game through Advanced Edition access, which confirms that a pre-release build was distributed to some players — most likely press and creators. That is not the same as a public beta, and no open beta or public demo has been confirmed by an official source.

Where each number comes from

Every figure on this page is traceable, which matters for a wiki:

• Release date, platforms, price, developer, publisher, achievement count and language count come from the official Steam store page and the official Mortal Shell website.
• 8 Shells and 60+ dungeons come from the publisher's official game page.
• Peak concurrent players come from SteamDB, which records the all-time peak of roughly 44,486 on August 23, 2026.
• The 9/10 review score comes from a single full PC review, not an aggregate.

Anything not on that list is marked 未確認 rather than filled in.

Is the release date the same on every platform?

Yes, as far as our sources go: August 20, 2026 on PC, PS5 and Xbox Series X|S, with the official site carrying worldwide-release messaging rather than a staggered regional rollout. Balance Patch 1 notes also confirm PC and console availability, which is the clearest evidence that console builds shipped on day one rather than later.

What is not confirmed is whether every store unlocked at the same hour — see the Release Time page for why that detail is genuinely unavailable rather than simply missing.

What has changed since release day

The game you would buy today is not the game that launched. Balance Patch 1 is confirmed to cover economy changes, boss and enemy nerfs, weapon buffs and Tarstone buffs, and it rolled out on PC and console.

That has two practical consequences. Bosses that felt unfair at launch may now be tuned differently, and any build advice written during launch week describes an older economy. Check the last-verified date on any guide before you copy it.

Editions and pre-order

Search interest in special editions is high, but no source we collected documents the contents of any edition beyond the standard release, and the stores list the standard price of $49.99.

Field	Value
Standard edition	$49.99
Edition contents	TBD
Pre-order bonus	TBD
Collector's edition	TBD
Physical release	TBD

We do not fill these in from speculation — a wrong edition contents list is a refund conversation waiting to happen.

Post-launch: NG+, open beta and patching

Three things confirmed after launch that change how you should read older guides:

• NG+ exists, so bond-gated completion can be finished on a second run.
• An open beta ran before launch, confirmed by name in the Balance Patch 1 notes.
• Balance Patch 1 shipped on PC with console rollout following, and a larger patch is in testing.

That last point matters most. Any guide written during launch week describes an economy, boss balance and weapon tuning that no longer exist.

Frequently asked

Is Mortal Shell II on Game Pass? No. Xbox Game Pass and PC Game Pass listings confirm it is not currently available on either.

Is it on PS Plus? Not confirmed. No official catalogue evidence.

Is there a PS4 version? No. PC, PS5 and Xbox Series X|S only.

Do I need to play the first game first? No. Mortal Shell II is a standalone sequel with its own story centred on the Harbinger.

Is it co-op? No. Steam lists the game as single-player only, with offline achievements.

Is there NG+? Yes, NG+ is confirmed to exist.

When does it unlock on Steam? TBD. We deliberately do not publish an unlock hour — see the Release Time page for why.

Data snapshot

All figures on this page were verified on August 28, 2026 against the Steam store page, the official website, the publisher's game page and SteamDB. Player counts and review percentages change daily; the release date, platforms, price and developer credits do not.

Still unconfirmed

Regional unlock times (TBD by choice), PS Plus inclusion, edition contents, pre-order bonuses, and any post-launch platform additions. Game Pass and PS4 are now confirmed negatives rather than unknowns.