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Sephiria Achievements Guide — 100% Completion Roadmap
Last updated: August 12, 2026 · 11 min read
Sephiria ships with 50 Steam achievements. Players who've cleared the story often stick around for the 100% ("I'm sitting here like an addict wanting more after a 100%"). This roadmap gets you there in the fewest runs — and flags the achievements you can miss.
Table of Contents
Achievement overview & difficulty
| Category | Count | Notes |
|---|---|---|
| Story / progression | ~12 | Unlock by beating chapters — unmissable |
| Boss-related | ~8 | First kills, no-hit attempts |
| Build / artifact | ~10 | Specific combos and chaos milestones |
| Grind / collection | ~14 | Kill counts, all X, shop purchases |
| Missable | ~6 | See below — easy to permanently miss |
Overall difficulty: 3/10 on a community scale — no skill-gate achievements are truly brutal, but a few no-hit boss achievements require a proper build.
⚠️ Missable achievements (do these first)
These are the ones players report missing on their first playthrough. They're tied to choice moments in the story — if you pick the wrong dialogue/option, you may have to start a new save.
| Achievement (approx.) | How to get it | Why it's missable |
|---|---|---|
| Origami | Complete a story choice with the "paper" option | Story branch locks out the other option |
| Melancholy | Reach a specific ending path | Requires consistent choices across chapters |
| Ronin | Beat a chapter while using no town upgrades | Upgrading "too much" before the boss locks it |
| Ghost in the Shell | No-hit a specific boss | Trivial with late-game gear — do it early |
| Globalization | Win co-op runs with players from 3 regions | Hard to organize after the playerbase cools |
💡 Rule of thumb: keep a second save slot for a "challenge run" — community threads repeatedly ask for more save slots, and a backup save is the only way to redo missable choices without a full restart.
100% roadmap — fastest order
- Playthrough 1 (story): play normally, grab all story + boss achievements. Ignore the missable challenge ones for now.
- Save backup: copy your save folder before the final chapter to redo ending choices.
- Cleanup runs: reload the backup to unlock the alternate ending paths.
- Challenge run: new save for Ronin-style "no upgrades" achievements — fastest with a burst build.
- Grind: finish kill-count and artifact-collection achievements in Survival mode — it's the fastest farm.
Story achievements
These unlock naturally as you progress through the walkthrough. Nothing special needed — just play through all 6 chapters. Chapter completion achievements account for the bulk of this category.
Grind & collection achievements
- Kill counts: "defeat 1000 demons" type achievements — fastest in Survival mode waves.
- Artifact collection: collect every artifact once — use the Artifacts Database to track what you're missing.
- Shop / economy: buy everything in town — combine with farming runs.
- Weapon mastery: fully upgrade each weapon type — see Weapons Guide.
Tips for achievement hunting
- Use Survival mode for everything kill/collection related — fastest spawn rates in the game.
- Chaos builds trivialize the no-hit boss achievements — over-damage before the boss can act. See chaos damage.
- Track progress with the Steam overlay — most collection achievements have a counter.
- Join the community Discord (linked in the About page) for co-op achievements like Globalization.
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