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Under Tides Rerun - Farming Guide and Event Operations

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Farming Guide

Event Currency:

  • Event Currency only drops from Normal Event Stages.
  • Total needed to clear shop: 3292

New Players:

  • Total from Event Missions: 1080
  • Total from First Clear rewards: 960 (520 from normal stages, 440 from EX stages)
  • Remaining currency needed from normal Event stages: 1252
  • Since currency drops at a rate of 1:1 for sanity spent,  1252 Sanity is needed on normal event Stages
  • Sanity required for First clear of EX and Challenge mode: 240
  • Total Sanity required to clear the Store: 1492
  • One week of Annihilation will require around 125 Sanity.
  • Total Sanity required is 1617
  • The event runs for 10 days. The weekly mission pots give and extra 240 for a total of 2640.  2880 if you save from the week before.   
  • Natural sanity generation (f2p) will easily be enough to clear the shop

Returning Players:

  • Total currency from Event Missions that award Intelligence Certs or Yellow Certs (SV-5, SV-6, SV-7, SV-8, SV-9, SV-EX-8 CM), also Missions that you will automatically achieve by clearing event stages: 500
  • Currency needed from normal Event stages: 2792
  • Since currency drops at a rate of 1:1 for sanity spent,  2792 Sanity is needed on normal event Stages
  • Sanity required for clearing WD-8-CM: 20
  • Total Sanity required to clear the Store: 2812
  • One week of Annihilation will require around 125 Sanity.
  • Total Sanity required is 2937
  • The event runs for 10 days. The weekly mission pots give and extra 240 for a total of 2640.  2880 if you save from the week before.
  • Natural sanity generation (F2P) will not be quite enough to clear the shop unless more missions are completed. 
  • Additional missions (stages SV-1 to SV-4) give an extra 140 and should be done first.  Stages SV-EX-1 through SV-EX-8 give 380.  
  • There IS ENOUGH Natural sanity generation (F2P) including ALL MISSIONS, but players should complete the minimum necessary if they want to clear the shop.

T3 Materials Farmable From Event Stages

  • SV-9: Integrated Device
  • SV-8: Crystalline Component
  • SV-7: Orirock Cluster

Farming Efficiencies (source): Device > Crystal > Rocks.  Devices are by far the most efficient material to farm and they do not show up again in an event-stage-farm event in the foreseeable future (though they will show up at a slightly higher efficiency in An Obscure Wanderer).  

effaces

To see how many of these Materials your Operators might need, check the material pages or the Planner here:

Under Tides - Event Operations

This Page shows the Operations available during the [Under Tides]  Event. 

Trust bonus on Event stages

New Enemies and Mechanic

Total First Clear Rewards
28
960
T3 Material Drops

Main Operations

Stage Sanity Rec. Lvl & Unlock Cond. First Time Drops Additional Drops
SV-1 12
LV.40
Clear
40
SV-TR-1 0
-
Clear
SV-2 12
LV.40
Clear
40
SV-3 12
Elite 1 Lv.20
Clear
50
SV-4 12
Elite 1 Lv.30
Clear
50
SV-5 12
Elite 1 Lv.40
Clear
50
SV-6 12
Elite 1 Lv.50
Clear
50
SV-7 15
Elite 1 Lv.70
Clear
80
SV-ST-1 0
-
Clear
SV-8 18
Elite 1 Lv.70
Clear
80
SV-9 18
Elite 2 Lv.20
Clear
80
SV-ST-2 0
-
Clear

EX and Challenge Modes

Challenge Conditions:

  • SV-EX-1: Increase all enemies' ATK and Max HP
  • SV-EX-2: Slower DP regeneration speed
  • SV-EX-3: Lower all Allies' Max HP
  • SV-EX-4: 8 tiles forbid deployment
SVEX4BannedGrids-2
  • SV-EX-5: Increase the ATK and Neural Damage of [Nutritious Harvester]
  • SV-EX-6: Greatly increase the DEF and Max HP of [Nutritious Harvester]
  • SV-EX-7: Increase the attack range and Max HP of [First Talker]
  • SV-EX-8: Remove two [Emergency Aid Facility]
Stage Sanity Rec. Lvl & Unlock Cond. First Time Drops Additional Drops Challenge Reward
SV-EX-1 10
Elite 1 Lv.40
Clear
40
SV-EX-2 10
Elite 1 Lv.50
Clear
40
SV-EX-3 15
Elite 1 Lv.70
Clear
50
SV-EX-4 15
Elite 1 Lv.70
Clear
50
SV-EX-5 15
Elite 2 Lv.10
Clear
50
SV-EX-6 15
Elite 2 Lv.20
Clear
50
SV-EX-7 20
Elite 2 Lv.25
Clear
80
SV-EX-8 20
Elite 2 Lv.30
Clear
80
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