Lightyear Frontier

There are a total of 7 ruins in the game; with 84 total artifacts that need to be collected in order to unlock this. They will require you to complete the main story objective of clearing the 8 areas to unlock the door to grab the upgrade inside; giving you access to the final area.

0:00 - Pine Heights (Dam: 9 Artifacts)
2:23 - Edge Cliffs 1 (Landing Pad: 7 Artifacts)
3:36 - Edge Cliffs 2 (Underground Lab: 14 Artifacts)
6:46 - Yellow Forest (Town Ruins: 14 Artifacts)
9:36 - Lowland Plains (Power Station: 16 Artifacts)
13:33 - Mountainside Coast (Mountain Chamber: 8 Artifacts)
15:20 - Tornado Rock Isle (Loading Dock: 16 Artifacts)

Completing these will unlock an achievement as well as these buildable and craftable items:
- Strange Table
- Strange Chair
- Strange Signpost
- Strange Fence
- Strange Lamp
- Strange Vase
- Strange Strange Fountain

For this achievement you can just complete one ruin 7 times. Save before collecting the last artifact then collect it to complete the ruin and then quit or dashboard the game. Return and continue from save and repeat. You can see your tracker go up each time