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Sources & credits
Our guides are built from these sources. Thank you to the developers and to every creator listed here; please support their work.
- Doomeris (YouTube), EVERYTHING ABOUT ISLES OF ABYSS - SHIPS, CANNONS & NO CRADLE?! (Full Dev Blog read-through)
- EUTOPIA (YouTube), Once Human Isles of Abyss - NEW Max Level Progression, No Cradle & Launch Rules: group size
- EUTOPIA (YouTube), Once Human: Isles of Abyss - Everything You NEED to Know Before You Play: story-gated gear tiers
- Gotcha Beast (YouTube), How to Be Ready Day 1: The Ultimate Isles of Abyss Guide: opening route (test server)
- Grizl (YouTube), Once Human Isles of Abyss: Build a Better Ship & Upgrade Smarter: first steps, reverse engineering
- Heartcarver (YouTube), What to ACTUALLY Bring to Isles of the Abyss: Eternaland transfer
- MaleOreo (YouTube), ONCE HUMAN ISLES OF THE ABYSS GUIDE! (Ship Building, Haywire Zones & Mechanics): sharks, free cam
- momsbisburi (YouTube), Isles of Abyss Fully Explained: Ships, Haywire Zones & Sunken Lord: Calamity Tower ladder, Calamity Nest
- oncehuman.th.gl, Calamity Tower - Burning Grudge Lv.60 - Locations & Map (older same-named content)
- oncehuman.th.gl, Calamity Tower - Return to Abyss Lv.50 - Guide (older same-named content)
- oncehumandb.com, Once Human Calamity Tower - "Gaze" — Item (older same-named content)
- Open World Games (YouTube), Once Human’s New Free Ocean Expansion Looks INSANE!: diving suit
- Starry Studio (oncehuman.game), Final Test Recruitment | New Survival Scenario: Isles of Abyss Coming Soon (28 Aug 2026)
- Starry Studio (oncehuman.game), New Survival Scenario Isles of Abyss Launches Officially on October 21 (dev blog, 16 Oct 2026)
- Starry Studio (Steam), 3.1.1 Bug Fixes (October 22)
- Starry Studio (Steam), Ocean Expansion: Isles of Abyss Is Now Live (patch notes, 21 Oct 2026)
- Starry Studio (Steam), Server Opening Schedule for Isles of Abyss and Isles of Abyss: RaidZone (21 Oct 2026)
- Steam Community discussion, Isles main quest
- Steam Community discussion, New Character? (Eternaland buildings)
- Steam Community discussion, Returning Player with some questions (build menu locked)
- Steam Community discussion, Ship and Base doesnt share inventory ??
- Steam Community discussion, Why is everyone lvl 50?
- SysFem64 (YouTube), Once Human Boat Guide: taking the suit off on the ship