Untethered
In zero-gravity or similar environments without movement-enabling equipment, you cannot take actions with the Move trait unless they function in zero-g (such as Manifest Energy Win...
You're in a zero-gravity (or similar) environment without a means of movement, floating without support. You can't take actions with the Move trait unless they specifically work in your environment (such as Manifest Energy Wings or jet propulsion movement). Other actions are unaffected as long as they don't require firm footing.
Untethered is a Starfinder-specific condition. Zero-g traversal options — thruster packs, magnetic boots, energy wings — matter more when a large portion of the map may leave characters Untethered.
Group Movement
This product includes content derived from the Starfinder Second Edition rules system, which is available under the ORC License (https://paizo.com/orclicense). Paizo, the Paizo golem logo, and Starfinder are registered trademarks of Paizo Inc. This product is not affiliated with or endorsed by Paizo Inc.