I’m a regular Once Human player, and when the devs dropped the details for the new scenario, I had to stop what I was doing. The Pioneer Test for Isles of the Abyss starts June 17, 2026 (PT), runs about 20 days, and only North America is included. Around 2,000 players will be selected, and yes—your progress on that server gets wiped when it ends. It’s a confidential test, so you can’t stream it or post screenshots.

Wait, before you rush off to sign up: recruitment closes May 30, 2026. You submit an application through the official survey, and the team reviews everything within three working days after recruitment closes. If you’re accepted, you’ll get an email or SMS with access details. But there’s a catch. You need to sign a non-disclosure agreement before the test starts. Breaking it can trigger account bans, associated account bans, and even legal action. They are not playing around.

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Now, what actually is this scenario? From the official announcement, it’s a maritime survival challenge. You explore scattered islands, gather resources through dynamic weather and day-night cycles, build facilities, and fight off threats from the environment and mysterious enemies. Mobile performance is not fully ready for the Pioneer Server, so the devs strongly recommend using PC. That’s a bit annoying for mobile-only players, but it makes sense for an early test.

Core gameplay systems I’m hyped about

The test is meant to validate the core loop, system stability, and story pacing, so it’s not the final quality. Still, there’s a lot here.

  • Sea Exploration and Calamity Tower Challenge: Calamity Towers activate gradually as World Progress advances. You gather allies, sail to the area, and challenge the tower. The first clear sends a rewards mail to the whole server and pushes World Progress further, speeding up Phase II. Later, towers generate new challenge variations.

  • Exploration, Building, and Story: The focus shifts to island ecosystems, new ways to get gear, and collecting new resources, facilities, and tech in ocean and underwater environments.

  • Day-Night Threat: At night, more dangerous enemies appear on islands. Simple, but it makes the survival loop feel heavier.

  • Deviation: Deviations roam the wilderness. You can fight them directly and try to capture them.

  • Random Events - Voyagers: Lost ships cruise on random routes. You can destroy them with your ship or board them for supplies. Bigger, better-equipped ships are tougher and have better loot crates.

  • Ship-Controlled Artillery: While sailing, you can use the wheel to select one artillery piece to control. This lets you fight at sea while still navigating.

This is where the scenario starts standing out to me. It’s not just “build a base and shoot things.” The ocean itself is part of the threat, and ship combat plus island exploration could change the usual Once Human flow.

The four Haywire Zones deserve their own section

Haywire Zones are survival events with unique rules for different island groups. The Pioneer Test includes four types:

Haywire Zone Main Threat Key Survival Trick
Mist of Deceit Fog blocks vision, especially at low HP Use light-based items to dispel mist
Skyfire Meteors transform the volcanic region Treasure hides inside scorching meteorites
Time Rain Temporal disorder accelerates growth and decay Use accelerated time strategically
Black Tide Pollution surges in cycles Adapt to successive pollution zones

I’m most curious about Time Rain. Plants and animals grow at unnatural speed, but your items and gear wear down rapidly. That sounds like a high-risk, high-reward loop where timing matters more than pure power.

Phase II, Calamity Zones, and The Sunken Lord

Once Phase II hits, Calamity Zones appear due to energy disorder. They have randomized layouts and powerful combat units. You need to arm yourself, strengthen your ship, and assault the zone to clear obstacles and threats. Clearing them advances server-wide Progress and speeds up the arrival of the world’s final boss, The Sunken Lord.

The Sunken Lord is an 8-player Legion Dungeon. After Phase II starts, it appears when Purification Progress reaches 100%. I like that the server has a shared goal, because it makes the whole thing feel less like a solo grind.

After you’re eligible for the test, logging in should prompt you to enter the Pioneer Test server.

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You can also keep playing other scenarios and switch back to the Pioneer Test through Mode Switch in the upper left corner.

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Rewards and whether the test is worth your time

Yes, there are rewards. The Pioneer Test gives an exclusive token called Wish Emblem. These emblems carry over to the live server and can be redeemed in the Starwish Shop.

  • Daily sign-in grants 100 Wish Emblems.

  • Signing in on day 7 grants the exclusive test cosmetic Jade Nocturne.

  • Reaching Tech Level 10 grants 300 Wish Emblems.

  • The sign-in campaign lasts 10 total days.

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There will also be an exclusive feedback event on the Pioneer Test Server. The devs say they’ll heavily reference player feedback for later adjustments to Isles of the Abyss. That’s actually why I’d consider joining—not just for the rewards, but because your suggestions could shape the final scenario.

Final thoughts

I’m cautiously optimistic. The NDA part is rough if you like sharing stuff with friends, but I understand why they want to keep the new scenario fresh. The fact that data gets wiped also means I won’t pour endless hours into permanent progression, but for a 20-day test that’s fine. I’ll likely try it on PC, focus on the new systems, and send as much feedback as I can. If you get in, do the same. Just don’t leak anything.

Insights are sourced from Destructoid, where hands-on coverage and commentary often emphasize how limited-time tests and strict NDAs shape community expectations—an angle that fits Isles of the Abyss’ confidential Pioneer Server format. In that lens, the 20-day, wipe-at-end structure and server-wide progression beats (like Calamity Towers advancing World Progress and accelerating Phase II toward The Sunken Lord) read less like “permanent grind” content and more like a focused stability-and-pacing validation pass, where the real value is stress-testing maritime survival systems—ship artillery control, Voyagers, and Haywire Zone rule-sets—before they hit a wider audience.