Once Human guides, sorted by scenario.
Current: v3.1.1 · Next update Nov 4, 2026, 3 PM PT · Permanent server Nov 18 (official sources disagree: Nov 12 (dev blog 10-16) vs Nov 18 (later notes))
Scenarios
Each scenario runs on its own servers and gets its own hub. Pages inside a hub say which game version they cover.
Isles of Abyss
Ocean scenario, PvE. Start at max level, build your own ship, push server purification to open the Sunken Lord.