Planet Shchierbin is an intermediate world between Aquilon and the Inner Planets. There is no danger (except inattention of incoming engineer) and no complex development conditions, but the planet itself does not have all the necessary resources for a rocket to make an engineer configure logistics on the planet or build mining stations on its orbit.

Shchierbin’s unique resource is vanadium. It can be made into:
Upgrade crusher to produce more alternative materials;
Vanadium-lithium accumulator to store more energy;
Vanadium catalyst to make MORE sulfuric acid;
Chemical furnace for gas operation and heating (soon).

In version 0.2.1, natural gas and its processing will be returned. I made a migration script for it, you don't need to recreate the surface of the Shchierbin.
In version 0.3.1, carbon ore will replace coal ore. It will be released as soon as I convince probability_expression not to destroy the Vanadium.