Xenon Singularity The Last Bastion

Xenocalypse - Total Universe Overhaul

Xenocalypse is a radical universe overhaul for X4: Foundations that turns the game into a brutal, post-apocalyptic survival sandbox.

The jump gate network has re-aligned, triggering a catastrophic Xenon event that has shattered the old galactic order. Most of the known universe has been overrun by the Xenon, while the remaining factions have been forced into isolated survivor pockets.

With the vanilla storylines disabled, the focus shifts entirely to survival, warfare, rebuilding, and pushing back against an overwhelming machine threat.

You are thrown into a galaxy where humanity’s last remnants are cornered in Sol, the Segaris Pioneers, and the refugee factions have retreated into fortified Ark sectors surrounded by hostile Xenon territory.

Current State

This mod is currently in Super Early Alpha v0. 31.

Core systems, map generation, basic economic loops, faction survival mechanics, and the custom gamestart are functional, but balance is still heavily work in progress.

Expect bugs, rough edges, and major balance changes.

A fresh game is mandatory.

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Game Version

Tested with:

X4: Foundations 9. 0

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Requirements

• []X4: Foundations[/]

  []X4: Cradle of Humanity DLC[/]

Cradle of Humanity is strictly required because Xenocalypse uses Terran and Pioneer assets, Sol sectors, and related economy logic.

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Installation

• []Download the mod archive.[/]

  []Extract the folder into your X4 extensions directory.[/]

Example:

..\X4 Foundations\extensions

• []Launch X4: Foundations.[/]

  []Make sure the mod is enabled in the Extensions menu.[/]

  []Start a new game and select the custom Xenocalypse gamestart.[/]

This mod changes universe generation and will not work properly on existing save games.

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Main Features

Total Xenon Domination

Almost all standard faction sectors have been wiped clean and replaced by active Xenon control. The Xenon are not just background enemies anymore. They are the main threat of the universe.

The Last Sanctuaries

Only a few survivor regions remain.

The Terran Protectorate, the Segaris Pioneers, and the refugee Ark sectors are the last major safe zones. These areas are meant to give the player and surviving factions a chance to rebuild, but they are not meant to be completely safe forever.

Refugee Ark Infrastructure

The refugee factions have retreated into Ark sectors with their own industrial and military infrastructure.

These sectors are designed to keep the remaining factions alive long enough for the player to get involved, build up, and e