Ancient Forge - Event Operations And Farming Guide

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Article by Daniel O'Brien
Table of Contents

Farming Guide

  • Event Currency can be earned from any Stage other than Annihilation and Extreme Modes (similar to Operational Intelligence Event)
  • Event Currency [Quantum Firecrackers] drop at the rate of 1 per 1 sanity spent.
  • Total Firecrackers/Sanity needed to clear shop: 1600
  • The shop can be cleared with less than 7 days (6.66) of natural sanity.
  • Pure f2p players should have no trouble clearing the shop.
  • Although the event nodes have ok drop rates for their primary enhancement material, the drop rates are not significantly better than normal farming nodes, so players can proceed with normal farming plans.

Detailed Sanity Efficiency

Courtesy of Moe and their Spreadsheet


AF-6 has lower efficiency and higher expected sanity / drop than regular farming maps, therefore NO GO.

Screen Shot 2020-07-28 at 11.17.28 AM


AF-7 has high efficiency (>99%, but still lower than 4-4) and lower expected sanity / drop than 4-4 and 6-11, CONSIDERABLY GOOD.

Screen Shot 2020-07-28 at 11.19.49 AM


AF-8 has higher efficiency than 3-3 but considerably lower than 4-8, but only slightly lower expected sanity / drop than 3-3, it is only DECENT in terms of farmability.

Screen Shot 2020-07-28 at 11.21.21 AM
Total First Clear Rewards


Ancient Forge Operation Challenge Mode Conditions:

  • AF-1 The deployment cost of ranged Operators is tripled.
  • AF-2 Enemies have greatly increased ATK.
  • AF-3 Acid Originium Slugs have reduced ATK but greatly increased ASPD.
  • AF-4 Big Bob's HP is greatly increased.
  • AF-5 One tile on the map cannot be deployed upon. 
  • AF-6 The duration of effects that reduce Block are greatly increased.
  • AF-7 Defense Crusher Leaders have greatly increased HP.
  • AF-8 9 tiles on the map cannot be deployed upon.
Stage Sanity Rec. Lvl & Unlock Cond. First Time Drops Additional Drops Challenge Reward
AF-1 6
Elite 1 Lv. 1
Clear 1-12
AF-2 9
Elite 1 Lv. 35
Clear 2-10
AF-3 12
Elite 1 Lv. 70
Clear 3-8
AF-4 12
Elite 1 Lv. 70
Clear 3-8
AF-5 15
Elite 2 Lv. 20
Clear 4-10
AF-6 15
Elite 2 Lv. 20
Clear 4-10
AF-7 15
Elite 2 Lv. 20
Clear 4-10
AF-8 18
Elite 2 Lv. 20
Clear 5-11
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