These Artifacts lies around in the possible areas of the supposed EP3 areas of ShellCore Command, that is my lore concept.

The Artifacts was responsible for repairing and awakening the mad roaming Orange cores who shooting each others and absorbing parts from other cores to becomes bigger while not obeying the laws of a ShellCore limits on handling how many parts, when these cores encounter the Artifact they normalize and turn them into the Yellow cores to serve its own built society of ShellCores... The Olives Scavengers cores then came to existence out of the few groups of Yellows then growing their forces trying to rebels against the Artifact's rules.