Sephiria achievements guide: all 27 Steam achievements with unlock conditions, global unlock rates, and the fastest 100% completion route.
Sephiria Achievements Guide — All 27 Steam Achievements
Sephiria has 27 Steam achievements at 1.0 (the store lists 27; the Early Access version had 24). Fifteen come naturally from playing through the six-chapter story; the rest require deliberate work — hidden rooms, variant bosses, Hard Mode stages, and hidden events. This guide lists every achievement with its unlock condition, the global unlock rate (from Steam's public achievement stats) so you know what's rare, and the fastest route to 100%.
Story Achievements (Earned Naturally)
These unlock as you progress through the campaign. You can't miss them if you finish the main story. Names below follow the official Steam list; conditions are compiled from ProdigyGamers' 1.0 walkthrough and cross-checked against Steam's global stats.
| Achievement | Unlock condition | Global unlock rate |
|---|---|---|
| Stronghold Exploration | Defeat the Mole Chief (Stage 1) | ~92% |
| Sky of the Roofless Tower | Defeat the Pillager Leader (Stage 2) | ~88% |
| This Is Not Stalking | Defeat the Mad Scientist (Stage 3) | ~81% |
| Enlightened Scholar | Defeat Askard (Stage 4) for the first time | ~78% |
| Chapter I | Talk to the World Tree Seed after beating Askard | ~77% |
| Chapter II | Finish another run and talk to the World Tree Seed again | ~69% |
| Broken System | Defeat the Guardian of the Library | ~51% |
| Last Gatekeeper | Defeat the first Guardian Demon of Qliphoth (Floor 5) | ~50% |
| Chapter III | Progress the story into Chapter 3 | ~41% |
| First Gatekeeper | Defeat the second Guardian Demon of Qliphoth (Floor 6) | ~28% |
| Three but One | Defeat the Mind-Eater Root in the deep area | ~28% |
| Chapter IV | Finish the story segment to unlock Chapter 4 | ~25% |
| Hero's Guise | Defeat Qliphoth | ~15% |
| Seal | Finish the ritual to seal Qliphoth's core (1.0) | new |
| Journey's End | Watch the ending credits (1.0) | new |
The Steam list and community guides sometimes call the same fight different names (e.g., "At the End of the Cave" vs "Last Gatekeeper"). The names above are the official Steam achievement names; the conditions are from the 1.0-era community walkthrough.
Missable & Hidden Achievements
These won't unlock on their own — they need extra work: hidden rooms, variant bosses, or Hard Mode.
| Achievement | Unlock condition | Global unlock rate |
|---|---|---|
| DIY | Repair your own house fully | ~93% |
| Traveler | Find a hidden room (break a cracked wall) | ~87% |
| Where the Blue Being Lives | Enter the Pocket Dimension (rare blue portal event) | ~81% |
| Endless Bombs | Defeat the Demolition Expert (variant of the Stage 1 boss after Chapter 2) | ~73% |
| Hunting Duel | Defeat the Shadow Blade (variant of the Stage 2 boss after Chapter 2) | ~71% |
| Qliphoth Contractor | Defeat Mutated Askard (variant of the Stage 4 boss) | ~70% |
| Soul Plan | Have the special conversation with Perr at the World Tree | ~32% |
| Chapter V | Find and save three hidden animals in the final areas (1.0) | ~14% |
| Temple of Evil | Bring all three saved animals to the Temple of Qliphoth (1.0) | new |
| Root's Retreat | Clear Hard Mode Stage 1 | ~48% |
| Root's Retreat 15 | Clear Hard Mode Stage 15 | ~35% |
| Root's Retreat 30 | Clear Hard Mode Stage 30 | ~24% |
Per the official Steam achievement list, the game ships with 27 Steam achievements, including hidden entries revealed on unlock.
Achievement Hunting Route (Fastest Order)
The efficient order, adapted from the community wiki's achievements checklist:
- Play the story — the 15 natural achievements plus DIY, Traveler, and the variant-boss achievements come along the way.
- Hunt secrets — while progressing, check cracked walls (Traveler), pocket dimensions (Where the Blue Being Lives), and Manok blood donations.
- Chase variants — after Chapter 2, variant bosses (Demolition Expert, Shadow Blade, Mutated Askard) replace standard bosses at random; you'll get them by just running the tower.
- Soul Plan — after Chapter II progression, find Perr at the carrot farm and follow the dialogue through the floating-island scene beside the Tree. The trigger is version-sensitive — if Perr isn't there, run again.
- Hard Mode — unlock Root's Retreat after the story and climb stages 1, 15, and 30.
- 1.0 extras — save the three hidden animals in the final areas and bring them to the Temple of Qliphoth (Chapter V and Temple of Evil).
Some achievements are cumulative (boss kills, enemy counts), others require a single run. When the wording is unclear, record both the total across runs and the best single-run value — this avoids repeating a long run because you assumed a cumulative objective was one-run-only.
How Long Does 100% Take?
Community completion data puts a full 100% run at roughly 40–60 hours depending on RNG (Hard Mode stage 30 alone can take a dozen hours). Median playtime for regular players is ~28 hours (Game Brain), so the achievements are the long tail of the experience. Co-op can speed progression — joining a team clears rooms at a much faster pace, and the wiki's co-op guide notes both players earn unlocks equally.
Root's Retreat 30 has the lowest unlock rate in the game (~24%). If you're only chasing 100%, budget for it: use a defense-first build (see the builds guide) and expect several attempts.
FAQ
How many achievements does Sephiria have?
27 Steam achievements at 1.0 — the store lists 27, up from 24 during Early Access. The three 1.0 additions are Seal, Journey's End, and Temple of Evil.
Are any Sephiria achievements missable?
Not permanently — the story achievements unlock through normal play, and the "missable" ones (Soul Plan, variant bosses, hidden rooms) can be obtained in later runs. None require a restart from scratch.
What is the hardest achievement in Sephiria?
Root's Retreat 30 (clear Hard Mode Stage 30) — only ~24% of players have it. Hero's Guise (defeat Qliphoth) and Chapter V are close behind at ~15% and ~14%.
How long does 100% completion take in Sephiria?
Roughly 40–60 hours depending on RNG, with Hard Mode stage climbing as the long tail. Regular story playthroughs average ~28 hours.
How do I get the Soul Plan achievement?
After Chapter II progression, find Perr at the carrot farm and follow the dialogue through the floating-island scene beside the World Tree. The trigger timing is version-sensitive.
Related guides: Guide · Secret Rooms · Walkthrough · Builds · Review
Last updated: August 13, 2026.
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