The Release
Platform Decay — the eighth book in Martha Wells's Murderbot Diaries — is out today, May 5, 2026, from Tor.com in print and Macmillan Audio simultaneously. It is a full novel, not a novella. The series has alternated between the two formats; this is the longer form, which the last several entries have also used as the stakes and scope of Murderbot's situation have expanded.
No review embargo lifted early. No extended excerpt campaign. It is simply available, which is how Wells tends to handle these releases — without the machinery.
What the Series Is
Murderbot is a SecUnit — a security unit, part human, part machine — built to follow orders and protect clients. It hacked its own governor module, which means it can technically do what it wants. What it wants, mostly, is to watch serialized television and not be perceived. It is contractually obligated to keep helping humans. It finds this arrangement exhausting.
The series, which began with novellas before expanding into full novels, is a sustained exercise in a specific kind of dark comedy: a protagonist with genuine competence and genuine reluctance, operating in a corporate-controlled universe that regards both properties as inconvenient. The emotional register — dry, occasionally devastating — is what distinguishes it. Murderbot is not a hero. It is an entity that has decided, against its better judgment, that it cares about certain people, and is annoyed about this.
It is one of the more distinctive voices in contemporary science fiction, and it is not particularly easy to describe to someone who hasn't read it.
Possibly Approaching the End
In a recent interview with Gizmodo, Wells indicated she hasn't begun work on a ninth book and hinted that the series may be approaching its conclusion. She hasn't stated thatPlatform Decay is the last entry, but the framing suggests she is thinking about where the arc ends, not just where it continues.
No timeline was given for Book 9. At eight books — across novellas, novelettes, and full novels — the series has sustained a consistency of voice that is genuinely unusual in long-running genre fiction. If Wells is nearing the end of what she wants to say with Murderbot, that is probably the right call. Series that know when to stop tend to be remembered differently from ones that don't.
WHERE TO START
Start with Book 1: All Systems Red. It won the Hugo, Nebula, and Locus Awards. It is a novella — short enough to read in a sitting — and it establishes everything that makes the series work: the voice, the premise, the specific texture of Murderbot's discomfort with other people. If it doesn't work for you by the end, the rest won't either. If it does, you'll read all eight.