- Gravity with density gradient, so most cells settle in the middle
- High nutrient concentration; even plain phagocytes can survive
- Fairly high salinity, so organisms live a long time
- Some light, but not too much, and only at the top
- Cells are killed at the edge, making for a relentless culling of unfit cells
Substrate (dropbox): wap easy evolution challenge.substrate
Description: Your mission is to discover some species and ecosystems that can live here, and learn how to effectively contaminate and evolve new random species. All genomes must be evolved, not designed--though you are free to change cell colors to help discern species.
Max Cells inserted: You may load and insert cells as many times as you like, as long as you only work with naturally evolved genomes.
Cell Types allowed: See objectives below.
Additional Rules: You may change any substrate settings during the course of evolution, but your finished species (one or several) must be able to meet the cell count goals on the base challenge substrate, with radiation turned off. A "species" could be a single specific genome, or a family of genomes that have evolved from a common ancestor, and fill a common ecological niche. As in real genetics, it's difficult to define exactly, but for the sake of the challenge, it simply means you don't have to narrow multiple mutations down to a single dominant genome unless you want to; any collection of similar genomes will do. The cell count of the total ecosystem is what matters, rather than the fitness of particular genomes.
Very easy objective: Macrophages
Using only phagocytes, contaminate and evolve a species that can survive for 100 hours.
Easy objective: Floaters and sinkers
Using only phagocytes and buoyocytes, evolve a species that sustains at least 200 cells for 100 hours. Once you have that, try 300 cells for 100 hours.
Medium objective: Parasite
Starting with any phagocyte-based ecosystem, contaminate and/or evolve a devorocyte-based parasite species that can survive in the center band, with at least 300 total cells in the ecosystem for 100 hours.
Medium objective: Swimmers
Using only phagocytes and flagellocytes, evolve a species that sustains at least 100 cells for 100 hours. Not hard enough? Try 200 cells for 100 hours.
Hard objective: Algae floaters
Using only photocytes and buoyocytes, evolve a species that sustains at least 400 cells for 100 hours. It helps to turn off "kill cells at edge" to get these started.
Hard objective: Protected parasite
Starting with any ecosystem, evolve a devorocyte parasite having some keratinocyte protection. Sustain a total cell count of at least 400 cells for 100 hours.
Hard objective: Ecosystem niches
Using any cell types, evolve an ecosystem of 2 or 3 distinct species that can all survive together for at least 1,000h. Color-code their genomes to clearly see how they fit in their separate niches.
Please feel free to post your solutions, including screenshots and/or substrates! I will be adding some of my own below.
This challenge was inspired by the "Cultivating Coexistence" challenge by user CannedGoods.