Sephiria Achievements Guide: A Roadmap to 100% Completion
This sephiria achievements guide maps a category-by-category road to 100%, from story clears and combat feats to secret rooms and constellations.
How the Achievement Set Is Structured
Sephiria’s achievement list spans the whole game: story progression, combat feats, and the discovery content the tower hides — secret rooms, constellation visits, and NPC quest threads like Elru’s. Since the 1.0 launch on July 31, 2026, the community has assembled a full 100% achievements guide on Steam, maintained by the Chinese-language community, and the shape of the grind it describes is consistent: a large share of the list falls naturally on the road to a first clear, and the long tail is exploration, persistence, and repetition.
That shape is good news for anyone planning a completion run. It means a structured approach — story first, combat second, secrets last — reaches 100% without brute force, and it means the hardest part of the list is not mechanical skill but knowing where the hidden content lives. This guide lays out the roadmap, explains what carries over between runs, and shows how to keep score as you go. For per-achievement specifics, pair it with the community guide and with our dedicated secret rooms, constellations, and Elru quest walkthroughs.
The Four Categories of the Grind
| Category | What It Covers | What It Demands |
|---|---|---|
| Story and progression | Tower milestones and finishing the arc | Time — it comes with play |
| Combat and skill | Feats, clears, and mastery-flavored goals | Practice and build knowledge |
| Secrets and exploration | Secret rooms, the Elru quest, and discovery content | Knowledge of the tower’s tells |
| Constellations | Visiting hidden zodiac rooms and revealing each at its blue marker | Persistence across many runs |
The categories demand different things, which is why the order you tackle them in matters. Story and combat achievements are earned by playing; secrets and constellations are earned by noticing. Splitting your sessions accordingly keeps the grind from going stale.
Suggested Order: A Phase Plan
Phase one: just play the game. Chase the story categories through to a finish and let combat achievements land as they land — you will bank a large share of the total list without targeting anything in particular. Phase two: turn to the combat goals deliberately. With finished-run knowledge and stronger unlocked options, pick off the feats that fought back the first time; many “skill” achievements become trivial once you know the floors and bosses involved.
Phase three: hunt the discovery tail. Build the secret room habit on every floor, finish the Elru quest’s three hiding spots — the carrot farm, the costume shop, and the ark puzzle room — and start ticking off constellation reveals, room by blue-marker room, using the same wall-scanning skills for all of it. Phase four: mop up whatever remains, which by now is a short list. This is the moment to open the community’s 100% guide in a second window and resolve the stragglers one by one.
What Carries Over Between Runs
Sephiria is a roguelite, so the profile is the constant. Achievements and completion progress are permanent once earned, and unlocks you earn — including everything earned while playing co-op — apply personally, to your own profile, even when you were playing in someone else’s session. Constellation reveals likewise live at the profile level, which is why your checklist shrinks permanently even as the tower reshuffles itself every single run. Run-specific state, such as gold and items in play, dies with the run; knowledge, unlocks, and completion credit do not.
| Progress Type | Carries Between Runs? |
|---|---|
| Story and progression achievements | Yes — permanent once earned |
| Constellation reveals | Yes — tracked at the profile level |
| Unlock trees and earned unlocks | Yes — personal, even when earned in co-op |
| Gold, items, and run loot | No — belong to the run |
| Player skill and floor knowledge | Yes — the real meta progression |
Co-op Is a Completion Tool
Multiplayer is not a detour from the achievement hunt — it is one of its accelerators. Because unlocks earned in co-op apply personally, time in a four-player party still advances your profile, and a party multiplies discovery: four sets of eyes find more hidden walls, standalone constellation rooms, and themed quest floors than one player ever will, and teammates can trade you items that keep you alive long enough to reach them. A sensible split is co-op for the exploration tail of the list and solo play for the combat feats you want full control over. Our co-op guide covers session setup, trading, and revive mechanics in detail.
Completion Checklist
| Milestone | Where to Check It |
|---|---|
| First full story clear | Achievements page, story category |
| Combat feats from natural play | Achievements page, combat category |
| Elru quest finished (all three hiding spots) | Quest dialogue and completion credit |
| Secret room habit established | Your own per-floor routine |
| Full constellation set revealed | Achievements page plus a personal checklist |
| Remaining mop-up | Cross-reference the community 100% guide |
Keeping Score Without Spoilers
If you would rather not read a full guide before finishing the story yourself, the Steam achievements page alone is a clean tracker: category names are usually enough to tell you which phase of the roadmap you are in, and the constellation set can be tracked with a simple personal checklist of star signs — revealed is revealed, regardless of which run revealed it. Save the community guide for the mop-up phase, when spoilers stop mattering and precision starts paying.
Community Resources
Three references will carry you to 100%. The Chinese-language community achievements guide on Steam is the definitive per-achievement checklist. Kean’s Sephiria Compendium, the community Google Spreadsheet, is the standard data reference whenever a guide entry needs numbers or current-drop verification. And the official Discord is the most up-to-date source whenever a patch changes what an achievement expects — and patches have been frequent, with version 1.0.25 and beyond landing by August 2026. r/sephiria rounds out the set for discussion and fresh discoveries.
Frequently Asked Questions
How long does 100% completion take?
Expect the story and most combat achievements to fall within normal play over a handful of finished runs, with the discovery tail — constellations especially — stretching the total considerably longer, since hidden standalone rooms reshuffle with the tower. The community guide’s own framing treats the constellation set as the long pole of the grind.
Do achievements and unlocks earned in co-op count for me personally?
Yes. Unlocks earned in co-op apply personally, credited to your own profile regardless of whose session you joined. For steps gated behind a specific interaction, be the one to perform it if it is your list that needs the tick.
Can I lose achievement progress by failing a run?
No. Achievements and profile-level progress such as constellation reveals are permanent once earned. What you lose on a failed run is the run’s own loot — never your completion column.
Do I really need the secret rooms and constellations for 100%?
Constellation visits are a required category, and secret room exploration builds the run quality that carries the rest of the list. Our secret rooms guide and constellations guide cover both hunts in full.