First Descendant 1.4.0 opens Karel’s Mothership

First Descendant Update 1.4.0 adds a main quest built around the final confrontation between the Descendant Corps and Karel. The new Mega Dungeon, Karel’s Mothership, stages that battle across Steam, Xbox and PlayStation 5.

First Descendant: confirmed details

The dungeon includes Karel, Vulgus from every legion and three enhanced commanders: Torisar the Curse-Spreader, Pattern-Enhanced Arche Slayer and Reborn Alzaroke. Attribute Vulnerability champions resist other damage types until players apply the matching effect.

What changes for players

The vulnerability rule gives squads a reason to cover several attributes instead of relying on one universal damage setup. Temporary abilities earned from defeating specific commanders can change the next encounter, connecting target order with the wider dungeon route.

Timing and wider context

Update 1.4.0 contains substantially more systems and balance changes than this story overview. Players should consult the full official notes for drop tables, eligibility and every Descendant adjustment before rebuilding equipment.

The feature list and timing above reflect the developer’s announcement published on August 20, 2026. Future hotfixes can adjust balance or availability, so live values should be checked against the current client.

For The First Descendant, the practical checkpoint is the live client: confirm the installed version, platform notes and regional rollout before relying on a scheduled feature. Store availability, maintenance windows and certification can create timing differences even when the developer announces one date for the wider release.

Source: official announcement. All release dates, named features and numerical values in this report come from that primary source; the analysis is our own.

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