The air hung thick with anticipation as my Endministrator, finally at level 20, stood ready. But a wall loomed—the level 40 cap, guarded by trials I couldn’t foresee. I knew I had to figure it out, or fall behind.
Getting your Endministrator to level 20 in Arknights Endfield feels good. You raise their level using collected materials, a pretty straightforward path. But pushing beyond level 20 demands more; hitting level 40 involves extra steps. This guide simplifies the entire process, listing all necessary items.
Beyond Level 20: A New Kind of Challenge
Think of learning a new instrument; the first few chords come easy, then suddenly, mastery demands serious dedication. The first step is getting your Endministrator to Level 20. From there, you’ll need to promote your operator.
- From the operator window, find the “promote” option. Initially, it will show as locked; you need to raise the rank.

- You’ll need three resources. First, the Protodisk. Earn Protodisk by running Protocol Space: Promotions. Repeat until you have enough. Higher difficulties offer better rewards.
- Pink Bolete can be found at Rare Growth gathering nodes after returning to your hub. If recently harvested, wait for them to respawn.
- T-Creds are easy to get; complete dailies and side quests.
What’s the Fastest Way to Farm Protodisk?
Want to accelerate Protodisk collection? Focus on higher difficulty Protocol Space: Promotions. Yes, they’re tougher, but the reward jump is significant. Playing smart now saves time later.
With all resources in hand, click promote. To raise Endministrator to Level 40, choose Promotion I. After securing Promotion I, you can level up to 40.

Are There Any Tricks to Conserving EXP Materials?
Reaching Level 40 demands much more EXP than reaching Level 20. Besides playing and completing quests, consider focusing on EXP material-rich events. They’re often limited-time, but can provide concentrated boosts.
You’ll need more EXP materials to reach Level 40 than you did to hit Level 20. There are various ways to farm EXP, outside of simply playing.
What Happens If I Run Out of T-Creds?
Running dry on T-Creds feels like hitting a brick wall. Prioritize dailies and side quests. These not only give T-Creds but often provide other resources, killing two birds with one stone.