- Conceal: Aptitude for knowing how to obscure places and objects so that others cannot easily find them. Conceal is often opposed by either Awareness (Sight) or Intuition (Surroundings).
- Hide: Competence at becoming unseen or unremarked by others, such as when camoflaged amidst xenofoliage or tailing someone through a crowd. Hide is usually opposed by an observor's Awareness (Sight).
- Move Silently: Trained facility for moving soundlessly and avoiding drawing attention. Move Silently is usually opposed by Awareness (Hearing).
Stealth is a measure of a character’s ability to go unnoticed. In an open wilderness, this likely means blending in with the surroundings, whereas within a crowded hab it might mean clinging to the shadows or just attempting to look like everyone else. In either circumstance, the character has the opportunity to go places where they are not wanted and to uncover secrets without others recognising that they have surrendered them. Characters who can move freely without being noticed are often essential in many missions, especially where a measure of discretion is involved.