Mortal Shell 2 Devs Explain Slayer Seal Achievement Lockout

What Is Mortal Shell 2?

Mortal Shell 2 is a formidable fantasy soulslike video game developed by Cold Symmetry. It is a third-person action-adventure title available for PC, PlayStation 5, and Xbox Series X|S. The game is designed to deliver a punishing combat experience, and it solves the problem of difficulty accessibility by introducing an optional in-game mechanic called the Slayer Seal.

This article was last updated on May 20, 2025, based on reporting from Rock Paper Shotgun.

Key Facts

How Does the Slayer Seal Work?

The Slayer Seal functions as an optional gameplay modifier that lowers the difficulty by empowering the player character. According to a Rock Paper Shotgun review, the Seal gives the player "a pulverising punch and your ranged weapons the ability to deal Break damage," which significantly aids survival in the game's hostile environment.

The feature was marketed in trailers as an in-game 'easy mode' for players struggling with the title's steep difficulty curve. However, its implementation has generated controversy within the community because equipping the Seal disqualifies players from earning Steam achievements.

The Slayer Seal is an optional difficulty-reducing item that grants a pulverising punch and Break damage to ranged weapons, but it triggers a Steam achievement lockout that persists even after the item is unequipped.

Why Did Cold Symmetry Disable Achievements for Slayer Seal Users?

Cold Symmetry has stated that the achievement lockout was not an intentional design choice. According to the developer's clarification, they "didn't intend to lock everybody out" by disabling achievements for Slayer Seal users. The situation was described by the developers as one where they "ended up kind of cornered" by the consequences of the mechanic's implementation.

Players on Reddit have protested the decision, arguing that they are being "punished too much for declining to punish themselves." The community discourse highlights a tension between preserving the integrity of achievement systems and allowing players to tailor difficulty to their preferences.

"We ended up kind of cornered there."

— Cold Symmetry developers, as reported by Rock Paper Shotgun

Cold Symmetry explicitly stated they did not intend to lock all players out of Steam achievements by disabling them for Slayer Seal easy-mode users.

Who Is This For?

Mortal Shell 2 is designed for players who enjoy challenging soulslike combat but may require adjustable difficulty options to progress. The Slayer Seal specifically targets those who want a less punishing experience without abandoning the game entirely. The controversy surrounding the Seal also speaks to achievement hunters who value Steam's progression system.

However, the developer's clarification suggests that the lockout was a technical or systemic side effect rather than a deliberate balancing measure. This places the ideal user in a position of uncertainty regarding how the system will be adjusted in future updates, if at all.

The ideal Mortal Shell 2 player is a soulslike enthusiast who seeks a brutal challenge but values the option to reduce difficulty via the Slayer Seal without sacrificing Steam achievement progression.

Common Questions

Does the achievement lockout persist after unequipping the Slayer Seal?

Yes. According to the source material, players are locked out of Steam achievements while the Slayer Seal is equipped and even after they unequip it. This ongoing lockout is the primary source of player frustration and has generated multiple Reddit threads protesting the mechanic.

Why are players upset about the Slayer Seal achievement lockout?

Players believe they are being punished for declining to punish themselves. The Slayer Seal is marketed as an easy mode, but its permanent achievement lockout feels disproportionate to players who merely want to adjust difficulty. The community's response has been visible across Reddit threads and public discussions.

Did Cold Symmetry intend to disable achievements for Slayer Seal users?

No. The developers stated they "didn't intend to lock everybody out" by disabling achievements for Slayer Seal users. They described feeling "kind of cornered" by the outcome, indicating the lockout was an unintended consequence rather than a deliberate design decision.

Sources and Methodology

This article is based on a single primary source published by Rock Paper Shotgun on May 20, 2025. The source material includes a summary of Cold Symmetry's developer statements, references to the game's official review, and community reactions from Reddit. All direct quotes are reproduced verbatim from the source material.

No data was converted or translated for this article. The original source URL is: https://www.rockpapershotgun.com/we-ended-up-kind-of-cornered-there-mortal-shell-2-devs-say-they-didnt-intend-to-lock-everybody-out-by-disabling-achievements-for-slayer-seal-easy-mode-users