PROTOCOL INVITATION: THE RETURN EVENT DETAILS

Event window: Throughout the Homecoming version (Version 1.4, live since July 16, 2026)

Protocol Invitation: The Return, the invite-code web event running through the Homecoming version

If you drifted away from Talos-II somewhere in the last few months, the game is quite literally calling you back. Protocol Invitation: The Return is a web event tied to the Homecoming update, and it pairs with the in-game returnee campaign to hand lapsed Endministrators a stack of Oroberyls just for logging back in. The twist is the invite-code layer: an active player shares a code, a returning player links it once, and both sides get paid. This post breaks down who qualifies, exactly what you collect, how the code linking works, and the mistakes that quietly cost people their rewards.

TL;DR - Key Points

• What it is: a web event at the official activity page that adds an invite-code referral layer on top of the in-game Protocol Reconnection returnee campaign.
• Who qualifies as returning: Authority Level 3 or higher, cleared the “Valley Reboot” main mission, and not logged in for at least 21 straight days.
• Both sides earn: the returning player gets an exclusive Oroberyl reward for linking a code, and the inviter earns Oroberyls for bringing people back.
• Codes lock permanently: once a returning player links an invite code it cannot be changed, so link the right one.
• In-game rewards are stacked: the Protocol Reconnection sign-in alone hands out 2,000 Oroberyls across seven days, plus 4 Basic HH Permits from task milestones.
• Runs all version long: available throughout Homecoming (Version 1.4) once your in-game Event Center is unlocked.
• Link our code below if you are coming back and do not have a friend’s code handy.

What Is Protocol Invitation: The Return?

It helps to separate two things that launched together and get mixed up constantly.

Protocol Reconnection is the in-game returnee event. It is the login track: a seven-day sign-in plus a set of tasks that pay out milestone rewards. You do not need a code for it, you just need to qualify as a returning player and open the game.

Protocol Invitation: The Return is the separate web event that sits on top. It lives on the official activity page and introduces the invite code. Active players share a code, returning players link one, and both parties bank extra Oroberyls. Eligibility for the web event is defined by whether you qualify for Protocol Reconnection, so the two are joined at the hip even though they are technically distinct.

In plain terms: Protocol Reconnection is what you claim inside the game, and Protocol Invitation is the referral bonus you claim on the website. You want both.

Who Counts as a Returning Member?

The game does not treat every idle account as “returning.” There is a specific gate, and all of these conditions have to be true.

The 21-day inactivity rule is the one most people trip on. If you popped in two weeks ago to claim a daily, you are not eligible yet. The 42-day cooldown exists so nobody farms the returnee rewards on a loop by going quiet for three weeks at a time.

Once you do trigger it, the clock matters: you have 14 days to work through the sign-in and tasks before the window closes.

How the Invite Code System Works

The referral flow is short, but one step is permanent, so read carefully.

1. Active players get an exclusive Invite Code. You share it however you like: a friend, a Discord server, a comment section.
2. Returning players link one code on the Protocol Invitation web page. You enter it, confirm, and it attaches to your account.
3. Both sides earn Oroberyls. The returning member gets an exclusive reward for completing the link, and the inviter is credited for the successful return.

The catch: once a returning player links a code, it cannot be changed. There is no swapping later if you find a better offer or realize you meant to support a friend. Pick the code you actually want before you confirm.

You also need the in-game Event Center unlocked to participate, which follows naturally from meeting the returnee criteria.

Link Our Code When You Come Back

If you are returning and do not already have a friend’s code lined up, you are welcome to use ours. It costs you nothing, gets you the exact same exclusive Oroberyl reward, and helps keep this fan site running.

Endfield Hub invite code: JN9GC3XAOP0947SZ

Where to enter it: open the Protocol Invitation: The Return activity page (endfield.gryphline.com/activity/relinkcall202607), sign in, and paste the code in the invite field.

Remember: the link is one-time and permanent, so confirm it once you are sure.

That is the whole ask. Link it, claim your reward, and get back to clearing Blightshades.

Returning-Player Rewards: The 7-Day Sign-In

The Protocol Reconnection sign-in is the meat of the returnee package. You claim one reward per day after coming back, and the Oroberyl days alone add up fast.

Add the four Oroberyl days together and the sign-in hands you 2,000 Oroberyls, plus 140,000 T-Creds across the week. The mid-week days lean into upgrade materials (Arms INSP for gear, Advanced Combat Records for operator EXP, Protodisks for skills), which is exactly what a rusty account needs to get its main team combat-ready again.

Reconnection Task Milestones

On top of the sign-in, Protocol Reconnection gives you tasks that generate points. Hit the point thresholds and you unlock milestone rewards, the headline being 4 Basic HH Permits (headhunting pulls).

Four permits is close to a third of a ten-pull, which is meaningful when you stack it with the anniversary freebies floating around Homecoming (the mailed 2,000 Oroberyls and the ENDFIELDRENEW code). A returning player who clears the sign-in, the milestones, and links an invite code walks away with a genuinely healthy pull budget for the Arcane or Liino banners.

Rewards by Player Type

Not everyone reading this is in the same spot. Here is how the event lands depending on who you are.

The lightly lapsed player

You stopped around the last patch and just crossed the 21-day line. This is the ideal case: you still remember your teams, your account is progressed, and the sign-in materials slot straight into gear and skills you already care about. Link a code, claim everything, and you are current again in a week.

The long-gone veteran

You have been out for months and the meta moved on. The Oroberyls and HH Permits are your restart fund, and the mid-week material days help rebuild whichever operators you want to main now. Treat the 14-day window as a soft “get reacquainted” quest and do not overthink the banner choice until you have caught up on what Arcane and Liino actually do.

The active inviter

You never left, but you have friends who did. Every returning member who links your code credits you with Oroberyls, so it is worth a nudge in your group chat. There is no downside to sharing, and the returnee still gets their full reward regardless of whose code they use.

Common Mistakes to Avoid

• Linking the wrong code. The link is permanent. Double-check the code before you confirm, because there is no undo.
• Assuming you qualify too early. If you logged in within the last 21 days, or triggered Reconnection in the last 42, the event will not fire yet.
• Forgetting the Event Center. The web event needs the in-game Event Center unlocked. If the page will not accept your account, this is usually why.
• Letting the 14-day window lapse. The returnee period is a countdown. Claim the sign-in daily and knock out tasks early rather than saving them for a “later” that never comes.
• Skipping the web event entirely. Plenty of returning players claim the in-game sign-in and never touch the website, leaving the exclusive Oroberyl link reward on the table.

What Would Change This

A few things are worth keeping an eye on as Homecoming rolls forward.

The inviter-side reward tiers are not fully published. We know inviters earn Oroberyls, but official per-invite amounts (for example, escalating rewards as you bring back more friends) have not been laid out in detail. If Gryphline posts a tier chart, that changes how aggressively it is worth sharing a code.

The web event end date is soft. It is described as running throughout Homecoming rather than to a fixed calendar day, while parallel Homecoming activities wrap around August 9, 2026. If you are returning late in the version, do not assume it lingers forever.

For the full version context around all of this, our Version 1.4 Homecoming calendar lays out every banner and event date, and the Homecoming program recap covers the wider announcement.

Final Read

Protocol Invitation: The Return is one of the easiest reward stacks in the game right now, and it is aimed squarely at people who thought they were done. Between the 2,000-Oroberyl sign-in, the 4 HH Permits from tasks, and the exclusive code-link bonus, a returning Endministrator can rebuild a real pull budget inside two weeks of casual logins. The only genuine risk is the permanent code link, so slow down for that one step. If you are on the fence about coming back for the Arcane and Liino banners, this is the version to do it.

FAQ

What is the difference between Protocol Reconnection and Protocol Invitation?

Protocol Reconnection is the in-game returnee event (the seven-day sign-in and task milestones). Protocol Invitation: The Return is the web event that adds the invite-code referral bonus on top. You claim Reconnection inside the game and Invitation on the official activity website.

How long do I need to be inactive to count as returning?

You must not have logged in for at least 21 consecutive days. You also need Authority Level 3 or higher, the “Valley Reboot” main mission cleared, and no Protocol Reconnection trigger in the previous 42 days.

Can I change my invite code after linking it?

No. Once a returning player links an invite code it is permanent and cannot be swapped. Confirm the code you actually want before submitting.

How many Oroberyls do I get from the sign-in?

The seven-day sign-in awards Oroberyl x500 on days 1, 2, 3, and 7, for a total of 2,000 Oroberyls, alongside 20,000 T-Creds each day and upgrade materials mid-week.

What do the task milestones give?

The point milestones award T-Creds at 150 points and Basic HH Permits at 300, 450, and 600 points, for 4 Basic HH Permits in total plus the T-Cred bump.

Do I need a code to claim the in-game rewards?

No. The Protocol Reconnection sign-in and task rewards are claimed in-game and do not require a code. The invite code only matters for the separate web event’s exclusive Oroberyl link reward.

What does the inviter get?

Inviters earn Oroberyls when a returning member successfully links their code. Exact per-invite tier amounts have not been fully published, but there is no cost to the returnee for using someone’s code.

When does the event end?

It runs throughout the Homecoming version rather than to a single fixed date, and your personal returnee window lasts 14 days once triggered. Parallel Homecoming events wind down around August 9, 2026, so do not leave it too late.

Why won’t the web page accept my account?

The most common reason is that the in-game Event Center is not unlocked yet, or you do not currently meet the returnee eligibility criteria. Confirm you satisfy the Authority Level, mission, and inactivity requirements first.

Is it worth coming back right now?

Yes, if you were considering it. The returnee stack (2,000 Oroberyls, 4 HH Permits, materials) combined with the Homecoming anniversary freebies gives you a strong pull budget for the Arcane and Liino banners with almost no grind.

Note: The content shown here is for demonstration purposes only and may differ from the actual game. Please refer to the in-game information for specific event details. Endfield Hub is a fan-made resource and is not affiliated with Hypergryph or Yostar.