Remnant

The Remnant are a synthetic race encountered by the Andromeda Initiative in the Andromeda galaxy. Many remnant units can fly and hover over the ground. Remnant forces will become hostile if one comes too close.

Remnant weapons are typically beam-based and have a high rate of fire. They don't use ammo but will have to cool down if overheated.

Subtypes
Remnant units include:
 * Architect
 * Assembler
 * Breacher
 * Destroyer
 * Nullifier
 * Observer

History
Remnant structures found on Habitat 7 have been dated to 300-400 years old, meaning they were constructed during the Andromeda Initiative's journey to the Heleus Cluster. Carbon dating on the vault structure at Eos indicated it gone dormant at about similar period.

While investigating the vault on Eos, Ryder theorized that the Remnant may have been attempting to terraform the Heleus Cluster.

Technology
According to Foster Addison, Remnant technology is actually less advanced than the Prothean technology uncovered on Mars. The main difference between the two is that while Prothean technology is "plug and go", Remnant technology "thinks differently".

The massive Remnant structures is theorized to be terraforming mechanism with planet-wide effect capability. As deciphered glyphs found within Eos vault shows, terms such as "atmospheric control" shows up, Initiative scientists believe that, if it works as intended, it can modified almost all aspects of a planet, make golden world a possibility. As evidence, after the Pathfinder team "rebooted" the main controls in Eos, the storm that plagued the initial settlement effort was gone, allowing settlement effort to go underway once more.

Language
Thus far there's no spoken language found with the Remnant, only "written" language in the form of glyphs. Collection of those glyphs in the fields plus other research materials recovered by the Pathfinder team allowed SAM to provide partial translations if and when needed.