Authority Level is the backbone of your progress in Arknights: Endfield. It controls your Sanity cap, unlocks new regions, gates the main story, and decides which gear you can equip. If you ignore it, you will hit a wall where the game simply refuses to let you continue until you catch up.
The good news is that almost everything you do in Talos-II feeds into this level. Story quests, Protocol Spaces, daily tasks, and even opening chests all add Operational EXP to your total. The trick is knowing which activities give the biggest returns and which ones are only worth doing once.
сFollow this order and you will spend less time grinding and more time playing the parts of the game you actually enjoy.
What Is Authority Level in Arknights: Endfield?
Authority Level is your account rank. It is separate from your operator levels, which track individual character strength. Think of Authority Level as your overall clearance in Talos-II.
Raising it does three things:
- Increases your Sanity cap, which is the stamina you spend on Protocol Spaces
- Opens up new regions and story chapters
- Unlocks higher-tier gear templates and factory systems
You can check your current Authority Level and EXP progress in the Progression menu, or from the HUD in the top-left corner of the screen next to your player name. The amount of EXP needed for the next level goes up as you climb, so early levels fly by while later ones take more grinding.
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Fastest Ways to Earn Operational EXP in Arknights: Endfield
Operational EXP is the only currency that raises your Authority Level. It comes from several sources, and they are not equal. Some give a huge one-time boost, others are small but repeatable every day.
| Source | EXP Value | How Often You Can Farm It |
|---|---|---|
| Main Story Quests | Largest single payout in the game | One-time |
| Protocol Spaces | 240–480 EXP per run, scales with difficulty | Repeatable, limited by Sanity |
| Node Missions (Operational Manual) | 120–180 EXP each | One-time |
| Daily Tasks | Smaller amounts | Every day |
| Simulation Tutorials (AIC Factory) | 100 EXP flat | Limited number, one-time |
| Chests, teleport points, mining rigs | Small passive amounts | One-time or passive |
Killing regular enemies out in the field does not give Authority Level EXP on its own. You need to tie your combat into one of the sources above, like clearing a Protocol Space or finishing a story mission.
Complete Main Story Quests for the Biggest EXP Boost
Main story quests hand out more EXP per quest than anything else in the game. They also unlock new systems, regions, and Protocol Spaces as you go, so pushing the story does double duty for your progress.
Play through main missions as fast as your combat power allows. If you get stuck because your operators are underleveled, that is the signal to switch over to Protocol Spaces and daily tasks for a while before coming back to the story.
Farm Protocol Spaces to Raise Authority Level Fast
Protocol Spaces are Endfield’s version of dungeons. They show up as floating black portals scattered around Talos-II, and they unlock after Main Mission 8: Building an Outpost.
Here is how to farm them well:
- Spend Sanity as soon as it fills up, since it stops regenerating once it hits the cap
- Check the Index tab in your Operational Manual to see what rewards each space offers before entering
- Prioritize spaces you have not cleared yet, since new ones unlock as your exploration level rises
- Use Origeometry or recovery items if you want extra runs beyond natural Sanity regeneration
Protocol Spaces are the best repeatable EXP source in the game because they never stop being useful. Even after you finish the main story, you can keep using them to grind toward the level cap.
Finish Node Missions and Daily Tasks for Steady EXP
Node Missions live inside your Operational Manual and act as a guided checklist for your progress. Each one gives 120 to 180 Operational EXP along with T-Creds and progression materials, so they are worth clearing as soon as they appear.
Daily Tasks work differently. They refresh every day and give smaller EXP amounts, but they add up fast if you check in consistently. A lot of players forget to claim the rewards after finishing them, so make it a habit to open the Operational Menu and collect everything before logging off.
Explore Talos-II for Extra Authority Level EXP
Exploring Talos-II on foot is slower than farming Protocol Spaces, but it still adds meaningful EXP over time, especially if you like clearing a map fully.
- Open every chest you come across, since each one adds a small EXP bump
- Use the collectible tracker on each region’s map to find items you might miss
- Unlock teleport points as you explore, which also count toward EXP
- Set up Mining Rigs early, since they generate passive rewards while you play other content
- Clear High Voltage fences blocking areas, which reward EXP once removed
None of these give large chunks on their own, but a completionist run through a region can add up to a full level or more.
Authority Level Thresholds and What They Unlock
Story progress and region access are locked behind specific Authority Level requirements. Knowing these ahead of time helps you avoid hitting a wall mid-story.
| Authority Level | What It Unlocks |
|---|---|
| 15 | Stock Redistribution, AIC Steward quest, Depot Bus, Endministrator form switch |
| 18 | Main Mission "The Mission Continues" |
| 26 | Main Mission "Down the Mountain" |
| 34 | Power Plateau area |
| 43 | Wuling region (via "Arrival at Wuling") |
| 60 | Current level cap |
Level 15 is worth planning around. Stock Redistribution and the AIC Steward quest both unlock at the same time and feed into each other, so clearing them together saves you a return trip later.
Authority Level Rewards in Arknights: Endfield
Every level grants Oroberyl, and certain milestones add gear templates or bonus rewards on top of that. These rewards are not just cosmetic extras. Oroberyl feeds directly into upgrading your factory systems, so a steady supply keeps your production lines moving instead of stalling out while you wait to farm more.
Your Sanity cap also climbs steadily as you level, growing from 125 at the start to 360 by the time you hit level 60. This growth matters more than it looks on paper. A higher Sanity cap means more Protocol Space runs before you run dry, which speeds up every level after it. Early on, you might only get two or three runs before hitting empty. By the late game, that same Sanity pool can carry you through six or seven runs in a single session, so the grind actually gets faster the further you go, not slower.
Gear templates unlocked at milestone levels are worth watching closely too. Some of the stronger equipment blueprints only become available once you cross a specific Authority Level, regardless of how much crafting material you have stockpiled. If you notice a gear template you want is locked, that is usually an Authority Level wall rather than a resource problem, and no amount of farming materials will get around it.
HH Permits and other milestone-only rewards also tend to pile up quietly in the background. These do not show up in your regular inventory notifications the way items from quests do, so it is easy to finish a session without realizing you have unclaimed rewards sitting in the Progression menu.
Tips to Level Up Your Authority Level Faster
- Spend Sanity the moment it caps out instead of letting it sit unused, since unspent Sanity above the cap is wasted potential EXP
- Check the Progression menu every few levels, since Oroberyl and permits pile up without any notification
- Pair Stock Redistribution with the AIC Steward quest at level 15 to save time, since both unlock together and support each other
- Treat Simulation Tutorials as a one-time early boost, not a long-term EXP source, and burn through them early while they still matter
- Balance story pushes with Protocol Space farming so you are never stuck waiting on Sanity to regenerate
- Log in daily even on days you don’t plan a long session, just to clear Daily Tasks and keep that EXP stream running
- Prioritize clearing a full region’s collectibles before moving to the next one, since backtracking later wastes travel time
- Keep an eye on upcoming story thresholds so you are not caught underleveled mid-questline with nothing queued up to farm
- Use Origeometry or Sanity recovery items right before a play session ends, not right when it begins, so you walk in with a full bar next time
- Avoid spreading Protocol Space runs too thin across many spaces early on; clear the highest-reward ones first based on what the Index tab shows
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