Mars Underground mod.

A challenge designed for the underground. A new sponsor. New rules and technologies.

Mars Underground mod.


A challenge designed for the underground. A new sponsor. New rules and technologies.

Four underground wonders at the same time!
A technology to avoid quakes.
Surface Wonders underground (reward of the sponsor).
And more...

New Game Rule. Rich Underground
IMPORTANT - A bug with exotic unable to return from asteroid if not played with "exotic imports" fixed.
A warning (can be disabled with a mod option) in the underground for the storm.
Boring sponsor reveals the entrances.

Completed Rich Underground. Anomalies on all maps
Added reduced maintenance for underground buildings.
Bug fix on revealed starting sectors for Boring Sponsor. Previously, sometimes the deposits where no revealed.