The Ancient Relics Add-on for Stellaris: Console Edition (JP) has 6 trophies - 4 bronze, 1 silver and 1 gold.
Study Minor Artifacts and discover a random technology
Successfully investigate an archaeological site
Have 100 Minor Artifacts
Complete the Zroni Precursor chain
Complete the Baol Precursor chain
In one game, find 5 Relics from Ancient Relics Story Pack