Hello, Administrator. If you are currently playing Arknights: Endfield, you are likely well-acquainted with the Protocol Pass system. Unlike many other games, Endfield’s Protocol Pass is divided into three tiers. While F2P (Free-to-Play) players can access two of these tiers for free, the third tier requires a premium purchase.
But what exactly does the paid tier offer? This guide provides a comprehensive breakdown of the premium Protocol Pass—covering pricing, resource, and value—to help you decide if it’s worth the investment.

The Protocol Pass is a seasonal progression system where you earn "Protocol Experience" by completing daily and weekly missions. As you level up, you unlock various tiers of rewards. In Endfield, this pass is divided into three distinct tracks:

Each tier of the pass includes a wealth of character progression resources.
Here are the rewards for the three pass tiers:

Instant Get: Pass EXP Earning Bonus +3%
Level Up 60 to Get:

Instant Get: Pass EXP Earning Bonus +3%

Level Up 60 to Get:

reaching Level 60 with both the Originium Supply and Protocol Pass active.

Pro Tips: Once you reach Level 60, continuing to level up the pass will grant you Oroberyl rewards. Therefore, if you are an active player, make sure to unlock the pass before completing your daily and weekly missions. This allows you to benefit from the 3% XP bonus, accelerating your progress to earn those extra rewards.
it is definitely worth buying. The pass provides a wealth of progression resources, so if you are an active player, you shouldn't miss out. If you are a casual player, you can check the pros and cons below to decide if it's right for you.
Tips: The abundant resources from the pass allow you to develop more characters—especially since Contingency Contract is launching in the upcoming version. If you're not sure what Contingency Contract is, check this Endfield About Contingency Contract.
The standard price for the pass through official channels is $9.99:

Third-Party (TOPUPlive): Top up on the TOPUPlive for just $8.08 and enjoy a 20% discount.With a $12 budget, you can add a Monthly Pass to maximize your gacha and materials.
Five steps to top-up
Step 1
Visit the TOPUPlive Endfield top-up page
Step 2
Select thr Protocol Customized you want to buy
Step 3
Provide your UID information to our support
Step 4
Complete payment with your preferred payment method (Credit Card, PayPal, or local E-wallet)
Step 5
Log in to the game and check your delivery.
View more Arknights Endfield top up options
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1. Is it worth buying if I started the season late?
Only if you can reach at least Level 40-45. Most of the value (the weapon boxes and bulk currency) is back-loaded. If you can’t finish it, your "cost-per-item" skyrockets.
2. When is the best time to buy the Protocol Pass?
You should buy it right at the start of the version, especially before you earn any EXP. Once purchased, you can get up to a 6% EXP boost. Plus, the Protocol tier comes with bonus EXP to help you level up even faster. If your goal is to get all the gacha pulls, you can collect every reward before the banner phase 2.
3. If I fail to complete the tasks to obtain all the rewards in the Originium Pass, will the Originium be refunded?
Unfortunately, no. In Arknights: Endfield, you are paying for the access to those rewards. If the season ends and you haven't reached the required levels, any unclaimed rewards will be lost, and the game does not provide a refund for the "unearned" portion of the pass.
The Endfield Pass offers incredible value. If you're short on development resources, it's definitely your best bet. Active players can also benefit from the free Originium tier to gather materials. Regardless of what stage of the game you’re in, you can find the resources you need. If you're looking to get even more for your money, check out TOPUPlive to get better rewards at a lower price.
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I focus on writing guides, tips, and strategy content for popular games. As an active player of Arknights and Wuthering Waves, I enjoy exploring updates, understanding mechanics, and turning that experience into clear, practical insights for other players.