One-save cleanup mindset
You do not need a second campaign for the full set if you keep a completion checklist before finishing. Play blind for enjoyment, then use scene lists and notebook gaps to mop up mastery achievements.
Names below match the Steam community achievements board: Seance, Persistence, Machine Supervisor, Researcher, House Tour, Technical Engineer, Full House, Not Over Yet, A Shocking Revelation, Inciting Incident, Death Note, Hallucination, Spectronoeticist, Still Alive, TYPE HE-L-P.
Steam community achievements for app 3641000 currently list fifteen display names. Exact description strings can lag or differ by client language; use the title plus the in-game unlock toast as ground truth when they disagree with a guide tip.
A one-save cleanup means finishing story flags, then using free investigation tools to mop mastery names without a second campaign.
Achievement notes
Seance: Watch your first memory on the Seance Machine — the opening tutorial scene grants this. · Persistence: Community guides: enter the same incorrect scene code twice. · Machine Supervisor: Tied to machine-operation progress in the modern D&M arc (supervisor role theming). · Researcher: Progress notebook research goals; keep confirming entries as you unlock them. · House Tour: Visit or unlock the breadth of house locations via successful room codes. · Technical Engineer: Advance technical/modern engineering story beats with Meg and the machine. · Full House: Fill identification coverage across the historical cast. · Not Over Yet: Continue past the first major milestone into the extended investigation. · A Shocking Revelation: Hit a major story reveal scene on the critical path. · Inciting Incident: Unlock the early incident framing memories. · Death Note: Complete death-order / fate documentation in the notebook tools. · Hallucination: Encounter the hallucination-flagged memory content. · Spectronoeticist: Deep mastery of the machine's memory navigation — late completion goal. · Still Alive: Community 100% guides list this among endgame survival/resolution unlocks. · TYPE HE-L-P: Legacy nod to Type Help; unlock via the related machine or menu easter path documented in completion guides..
Where Steam's public board shows only the title, tips above stay conservative and point at systems rather than fabricated secret menu paths. Prefer in-game achievement pop timing as ground truth if a patch renames descriptions.
Treat mastery names like Spectronoeticist, Still Alive, and TYPE HE-L-P as endgame cleanup rather than early accidents. Story-gated names such as Inciting Incident and A Shocking Revelation tend to fall out of critical path scenes.
If an unlock toast disagrees with a guide tip, trust the toast and update your personal checklist; patch notes can rearrange mastery conditions.
TYPE HE-L-P, Spectronoeticist, and Still Alive are the names most often left for mop-up in community threads. Plan a final free-investigation hour rather than interrupting mid-deduction for them.
TYPE HE-L-P and legacy nods
TYPE HE-L-P is an explicit bridge to the original Type Help. Completion communities treat it as a mastery/easter achievement rather than an accidental early unlock. Finish primary story flags first so you do not soft-miss context that makes the nod readable.
If you played Type Help on itch.io, expect mechanical familiarity with code deduction; the Steam remaster still changes presentation enough that achievement timing will not match the free text game.
TYPE HE-L-P is an explicit bridge to William Rous's original Type Help. If you already finished the free itch.io version, expect familiar deduction with new presentation rather than identical achievement timing.
Players coming from Type Help should still re-learn the illustrated interface; presentation changes are large enough that muscle memory is not perfect.
Quick answers
FAQ
How many achievements are there?
Fifteen on Steam for appid 3641000 at verification time. If a patch adds or renames entries, recount on the community achievements board and update your checklist; this page freezes the launch-week display names we scraped.
Are any permanently missable?
Launch guides report cleanup remains possible on a completed save while free investigation tools stay available. Keep at least one clear save for mop-up and finish mastery names before you delete the slot you used for the story.
Does Steam Deck matter?
The game supports controllers and Deck-class hardware generally. Achievement names are platform-agnostic on Steam, so Deck play needs comfort settings more than a separate secret checklist for unlocks.