Erlkönig: Starfield: Unity Effects

When passing through the Unity:

You keep († = unless you accept the Unity's offer to alter)

• name †
• traits †
  • trait-triggered events like "special chests" don't retrigger in NG+
  • removed traits stay removed (so killing the Adoring Fan is permanent)
  • these notes don't cover what happens if you change traits
• physical description †
• background
• level
• skills
• powers
• magazine effects
• the ability to use your scanner, gained when Barrett gave you the watch
• achievement progress
• research progress
• skill challenge progress
• count of times you've been through the Unity (newly incremented)

You lose

• quest progress
• reputations
• affinities
• inventory
• ships and everything in them
• outposts
• quest-related ship part unlocks
• stellar body scan data
• all discovered map data (info about systems, POIs, interstellar routes, and so on)
• any mod data stored in inventory, like Astroneer's

You gain - probably all 3D printed together in one pass:

• new version of you
• starborn armor, or an upgraded version if below the limit
• starborn guardian, or an upgraded version if below the limit
• a combat debuff (stacking)
• trivial inventory/cargo † (no weapon ‡)

The new universe gains

• a combat buff against you (stacking)

Notes:

† The amount varies a lot, one recent NG+ seemed especially generous, 128 kg:

• 4x supercooled magnet (in the captain's locker - the rest is in cargo)
• 4x supercooled magnet
• 6x tasine superconductor
• 6x vytinium fuel rod
• 8x antimony

‡ This is almost assuredly intentional, since you also can't craft weapons (and armor) from scratch, and is probably to prevent the player from just recreating the same favorite weapon each time, and instead stay engaged in the loop of finding one, potentially changing the feel of each run for better replay value, which probably also explains why the starborn ships and armor are midrange rather than elite combat paragons