The crowdfunding campaign launched on October 1, 2026, and an update on October 2, 2026, shows the project has surpassed its initial funding goal of £30,000 and sits just under £49,000.
The Kickstarter is scheduled to close on Monday, November 2, 2026.
The Rubber-Keyed Wonder is positioned as a companion piece to the 2024 documentary produced by Gracious Films and directed by Anthony and Nicola Caulfield.
The book is written by author and gaming historian Kim Justice, who previously authored Arcade Decades - '80s Edition for Numskull Publishing.
According to the Kickstarter page, the book will contain more than 200 pages of written and visual history drawn from Spectrum archives, together with comments and contributions from people who played key roles in the platform's story.
The campaign page states the project will "single out 48 ZX Spectrum games described as having helped define a generation," and the book will present those titles alongside contextual essays and archival material.
Formats listed in the crowdfunding pitch include digital, paperback, hardback, and a Collector's Edition.
A limited run of 480 individually numbered editions is planned; these editions will include an exclusive dust cover, bookmarks, and a 42-minute documentary produced by Gracious Films.
Pledge tiers on the campaign offer standard and premium options, with hardback, signed, and special Collector's Edition copies available at different levels.
The publisher's campaign update confirms pledges remain open until the November 2 closing date.
While The Rubber-Keyed Wonder focuses on the ZX Spectrum's legacy and archival history, that legacy continues to inform modern retro releases and compilations across contemporary platforms.
Services such as the Nintendo eShop and hardware like the Nintendo Switch have hosted retro-focused releases that reflect the ongoing interest in early home-computer game design, a subject the new book aims to document.
Backers and interested readers can view the Kickstarter page for full pledge details, delivery estimates, and the campaign timeline ahead of the November 2, 2026 closing date.