Teria casts the player as Alex, a private detective drawn to a remote mining colony after Earth receives its distress signal. His arrival goes badly: unknown attackers destroy his spaceship, leaving him to uncover what has happened and protect the settlers. The rocky planet’s valuable Kretium deposits explain why people established a settlement so far from the stellar highways, while the crisis turns that isolated outpost into the setting for a science-fiction mystery.
Survival calls for more than simply confronting enemies. Alex must first locate the station robot, then follow its instructions as he clears the planet of Morphs, bio-robots shaped like zombie dogs. The game also describes encounters with aliens and a search for the reason Teria has become the center of violent events. Weapons suited to different situations, medical kits and protective-field generators are among the equipment Alex must use carefully to stay alive and help save the colony.
Teria is designed as an episode-based action adventure, and its listed category is single-player. The supplied game description identifies Episode 1, “The Beginnings of Salvation,” as the current release in its account, framing the story as one installment in a larger episodic design.