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Mapcraft - Fantasy map designer

WorldGen - SciFi universe generator

Mapcraft Web - Web based fantasy map designer

All code for the project is released under the GPL, and is copyright Samuel Penn.

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Life Level

The life level of a world defines (in very broad terms) how advanced native life is on the world. It ranges from no life at all, through simple single celled organisms, to land animals and extensive (Earth-life) conditions.

The life level of a planet is defined in the enum LifeType


Simple Land

Simple land life is common, in the form of algae, mosses, insects, amphibians and later on plants. Modern forests are unheard of for many such worlds, though small tree-like plants and moss forests may exist. There are no large land animals.

This marks the Silurian period on Earth, where the first land animals were relatives of spiders and millipedes. It generally lasts a few tens of millions of years.

Complex Land

Animals which live entirely on land are common, and can be quite large, though the range is limited. Forests and other extensive vegetation are starting to take hold, but much of the land is bare.

This is similar to the Devonian period onwards. Seed bearing plants began to form forests, and the earliest tetrapods began to appear. It may last up to 100-200 million years.


Life can be found pretty much everywhere, with forests covering much of it where possible, and many large land animals - both predators and prey. It pretty much covers everything from the Triassic period onwards, though probably started somewhere in the Permian.

worldgen/planets/lifelevel.1247603096.txt.gz · Last modified: 2015/02/04 22:39 (external edit)