Biogenesis by Joan Queralt Molina (original developer until Biogenesis 0.8) is an artificial life program that simulates the processes involved in the evolution of organisms. It shows colored segment based organisms that mutate and evolve in a 2D environment. Biogenesis is based on Primordial Life by Jason Spofford.

Microscopic organisms can be plants , consumers, viruses, or they can combine these lifestyles. The simulation includes a genetic laboratory, where you can design or modify the organisms yourself.

The "Color Mod" (new version 2.01 now)  is a semi-official expansion for Biogenesis by MarcoDBAA (= creator of this page and co-admin at sourceforge for Biogenesis), that adds 39 new colors (functions) to it (see first screenshot), and allows the organisms to react actively and intelligently (because of natural selection), when they touch (TEAL segment) or see (EYE segment) another organism. The colored segments can branch out, mutation rates can be individual, and there are many more changes. You can read about them here and download the sourcecode of my Color Mod too: https://sourceforge.net/projects/biogenesis/files/Color%20Mod/2.0/

Biogenesis is completely free to play.

Available ingame languages: English, Spanish, Catalan, Portuguese, German, Russian

User manual (vanilla Biogenesis) at: http://biogenesis.sourceforge.net/

You may post at the sourceforge discussion forum: http://sourceforge.net/projects/biogenesis/forums

You can use this subreddit: https://old.reddit.com/r/BiogenesisGame/

A Biogenesis user also created a discord server a while ago, and I am also active there: https://discord.gg/EBCm9NGF8h

Have fun! :)