Eridium and Vault keys
Sweep Kairos Vault Symbols for SDU Tokens
Vault Symbols grant SDU tokens individually and complete a separate Myth of the Vault collectible challenge.
WHERE & HOW TO FARM
Sweep Kairos Vault Symbols for SDU Tokens
Kairos map, with the Vault Symbol filter enabled; sweep area markers and mission-gated rooms.
Before you go
- Reach the relevant Kairos regions and have the map available.
- Use the map’s Vault Symbol collectible filter to track discovered symbols.
- Complete any mission that gates a symbol before searching its room.
Farming steps
- Open the map and enable the Vault Symbol filter so other activity markers do not obscure the sweep.
- Choose one region and travel to its uncompleted Vault Symbol markers, checking the map as nearby symbols reveal.
- Look above ground level as well as along cliffs, cave walls, Order installations, vents, and hidden passages.
- Use grapples, jump routes, vents, and mission access points to reach symbols that are not on the main path.
- Interact with each symbol and verify its map marker changes to completed before leaving the area.
- Finish the required missions for symbols inside gated rooms, then return to those locations if needed.
- Review the Myth of the Vault challenge and repeat regional sweeps until the challenge completes.
- Pairing a symbol sweep with nearby fragment hunting can reduce travel, but the two collectible types have separate progress and rewards.
- Some symbols are only accessible during or after named missions; check the mission gate before abandoning a marker.
Repeat, collect and use
Each Vault Symbol is a one-time collectible. Continue through uncollected markers until you have the SDU Tokens you want and, if pursuing completion, the Myth of the Vault reward. Symbols do not respawn for repeated token farming.
Common mistakes
- Searching only at ground level misses elevated symbols on cliffs, structures, and cave ceilings; check above and below the map route.
- Confusing Vault Symbols with Vault Key Fragments: collect the symbol itself and verify the correct challenge tracker advances.
- Leaving a mission-gated symbol behind before completing its required mission: finish the mission gate and return to the marked room.
When to stop or switch
Stop when the SDU upgrades you need are funded or the Myth of the Vault challenge is complete; these collectibles cannot be farmed again after pickup.
Sources & fact checks
What you can get here
Open a guide to find other locations and see what the item is used for.