Paizo unveils Tech Core, Starfinder Second Edition’s tech-class expansion

Paizo’s Tech Core looks less like a starter purchase and more like the book Starfinder Second Edition tables will reach for the moment they want to push past the core chassis. The 264-page rulebook is set for October 7, 2026, and it bundles two tech-driven classes, two archetypes, new ancestries and heritages, gear, spells, starship rules, and GM support into one hardback built for campaigns that want to feel more like laser cutters, hacked systems, and modular companions than sword-and-board fantasy in space.

The headline additions do the heavy lifting. The mechanic is Paizo’s versatile martial class, built around an exocortex and able to command a robot companion, a turret, or mines. The technomancer is the other half of the pitch, a prepared spellcaster who overclocks gear and uses “magic hacks” to bend magic into programmable science-fantasy tricks. Those are not luxury options for odd builds. They solve table problems for players who want a class identity that lives in the machinery of the setting, not just in a spell list or a weapon choice.

Tech Core goes beyond class pages, which is why it reads as a real expansion rather than a narrow class packet. Paizo says it includes the nanocyte and junkomancer archetypes, plus new tech-focused feats, high-tech spells, armor, weapons, upgrades, augmentations, and magic items. The book also adds high-tech ancestries and versatile heritages, including robotic SROs, living holograms, and cyborgs. That mix gives groups concrete tools for building characters who fit Starfinder’s future-first tone instead of importing it from somewhere else.

The other major draw is starship play. Tech Core adds tactical starship combat rules for building, crewing, and upgrading ships, along with sample ship enemies, hazards, and GM tools for running space battles. That matters because starship scenes live or die on whether the rules actually support table use, and this package is aimed at making those fights easier to stage without turning them into empty set dressing.

The timing also makes the book feel deliberate. Paizo’s earlier Tech Class Playtest ran through May 30, 2025, and the playtest material said the mechanic and technomancer would be available at the launch of Starfinder Second Edition and in Starfinder Society Organized Play. That puts Tech Core in the middle of Paizo’s broader rollout, following Starfinder Galactic Ancestries, the 224-page ancestry book that added 21 ancestries and more options for both Starfinder Player Core and Pathfinder Player Core ancestry lines. For groups already buying into the new edition, Tech Core looks like one of the clearest signposts yet: this is where Starfinder 2E starts rewarding tables that want more gadgets, more companions, and more ways to make the future matter at the game table.