In Search of Lost Time Genshin Impact is a multi-part world quest that rewards players with precious loot and achievements. To complete the full questline, you’ll need to help researcher Broglie retrieve lost monitoring data from sunken hydrology research stations across Fontaine. This guide covers how to complete all parts of In Search of Lost Time.
Overview of In Search of Lost Time Genshin Impact Full Questline
In Search of Lost Time has four sequential quests:
- In Search of Lost Time: South
- In Search of Lost Time: West
- In Search of Lost Time: North
- In Search of Lost Time (main quest)
Completing the first three unlocks the final quest. You’ll explore sunken stations, solve puzzles, battle enemies, and chase down a Fatui agent. The rewards include a Luxurious Chest, achievements, and adventure experience.
Starting the In Search of Lost Time Genshin Impact Questline
Find Broglie southwest of the New Fontaine Research Institute near a broken bridge. He’ll explain that Fontaine’s hydrology research stations sank, losing crucial data. Offer to help recover the data across three sunken stations. This begins the sub-quests leading to In Search of Lost Time.
In Search of Lost Time: South
For the first sub-quest, follow the quest marker to a sunken research station. Inside the control room is a deactivated console. Read the operating procedures, then activate the underwater Crystal Mechanism to open the main door.
Use the now-powered console for an energy transfer puzzle. Absorb energy from one device and release it into another to activate the console and get the monitoring data. Return topside and give the data to Broglie.
Rewards: Monitoring Data, Adventure EXP
In Search of Lost Time: West
Climb the tower north of Mont Esus East. Defeat Fatui at the top, then realize the final floor is blocked. Read a note on the lower floor pointing to two Fatui camps. Visit them to get clues to clear the tower.
Lead the hidden Fatui out, defeat them, and climb to claim a Precious Chest. Activate the console to get the second monitoring data.
Rewards: Precious Chest, Monitoring Data, Adventure EXP
In Search of Lost Time: North
For the third sub-quest, climb another tower northwest of the Research Institute. Downstairs, solve an energy transfer puzzle to open a caged Common Chest.
Defeat enemies, then do another energy transfer from downstairs to upstairs to unlock the second Precious Chest and monitor data.
Rewards: Common Chest, Precious Chest, Monitoring Data, Adventure EXP
Rewards for Completing In Search of Lost Time Genshin Impact
After finishing the three sub-quests, talk to Broglie at the Research Institute again to begin the final quest. Follow him to a central processing station guarded by a Hydro Samachurl.
Defeat the enemy and let Broglie unlock the Luxurious Chest downstairs. But you’re interrupted by Malinovskyi of the Fatui who steals the research!
Chase Malinovskyi through energy transfer puzzles to corner him and retrieve the stolen data. Return it to Broglie to complete In Search of Lost Time and earn The Forgotten Realm achievement.
Rewards: Luxurious Chest, Achievement, Adventure EXP
Completing the layered In Search of Lost Time questline requires dedication, focus, and puzzle-solving prowess. Take the time to explore every corner of the abandoned research facilities. Harness your elemental powers against formidable foes. With this In Search of Lost Time Genshin Impact full guide, you can now complete the In Search of Lost Time questline and all its rewarding challenges in Genshin Impact!
