Sephiria Hidden Achievements — Status Guide

The names and unlock conditions for Sephiria hidden achievements are 待确认; the supplied research confirms only that the Steam version has 27 achievements. It does not separate visible achievements from hidden ones or connect any achievement to a chapter, boss, item, or character. This page gives the verified boundary so incomplete achievement advice is not presented as fact.

Confirmed Achievement Total

Sephiria has 27 Steam achievements according to the collected source material. That total is the only achievement-specific number verified for this page. It does not prove how many entries are hidden, how difficult they are, or whether every platform displays them in the same way.

The game is available for Windows and macOS through Steam. It entered Early Access on April 3, 2025, and released version 1.0 on July 31, 2026. Achievement lists captured before the full release may therefore lack later additions or use conditions that changed during development.

Hidden Achievement List

A verified list of hidden achievement names is 待确认. The supplied research does not include names, icons, descriptions, rarity percentages, or ordering from the Steam achievement interface. Creating a list from memory or from an unlabeled screenshot would risk adding content that the source does not support.

The source also does not establish whether Steam reveals a hidden entry after completion. It gives no distinction between story milestones, challenge achievements, collection goals, or cooperative tasks. Those categories may be useful for organization only after the underlying entries are verified.

Unlock Conditions

Every hidden unlock condition remains 待确认. The material confirms six chapters, 27 achievements, up to four-player online co-op, and numerous build systems, but it does not link those facts together. A chapter completion, final encounter, Artifact, costume, revival, or traded item should not be described as an achievement trigger without direct evidence.

Exact progress counters and failure conditions are also absent. There is no verified requirement involving a certain character, weapon branch, potion, Talent, Miracle, or hard-mode element. Those specifics must remain excluded until a current source demonstrates them.

Solo and Co-op Questions

Sephiria supports online co-op for up to four players, item trading, and teammate revival. These are verified features, but the research does not state whether hidden achievements can be earned in co-op. Host-only credit, shared credit, individual credit, and cross-platform differences are all 待确认.

A co-op achievement test needs to record which player performed the action and which accounts received the unlock. It should also identify the game version and whether the players were host or guest. Without those details, one successful pop-up cannot establish a general rule.

Version and Platform Scope

The latest research check covers official updates through August 10, 2026. The verified platforms are Windows and macOS on Steam. No achievement behavior for unlisted platforms should be inferred from this material.

Version context is essential because Sephiria changed between Early Access and 1.0. A guide based on a pre-release build may still show real footage while giving obsolete requirements. Current official notes and the live Steam achievement list should take priority over old summaries.

How to Verify Each Entry

Start with the Steam achievement interface and TEAM HORAY's official update posts. For each hidden entry, preserve the exact displayed name, description after reveal, completion action, and build date. A second current record should confirm the condition before it becomes a definitive instruction.

Until those records are collected, only the total of 27 achievements is supported here. Hidden names, counts, routes, and unlock conditions remain 待确认. This conservative status prevents broad game systems from being mistaken for documented achievement requirements.