The object of the game is to improve your amoebas by giving them Genes, which change the way the normal rules work in some way, such as better movement or feeding. Amoeba eat foodstuff cubes, one of each other colour. when they eat they excrete two cubes of their own colour. If it cannot eat, it starves and takes a damge bead. Two damage beads and it dies, to be replaced by two of each foodstuff colour.

After checking for environment effects, players can then buy Gene cards, which improve all your genes in some way.
After genes have been chosen, players can then add more amoebas to the pool, if they wish, these being added adjacent to an amoeba of that player already in play. Then, as mentioned, any amoebas with two beads die and are replaced with more foodstuff.

Then there is a scoring round where you use a chart to gain points depending how many amoebas are in play and how many Genes you have. Game ends when environment deck runs out.

SUMMARY:
This has proved to be very popular with anyone I have introduced it to. The idea of eating foodstuffs and excreting which then provides food for other genes at the same time slowly poisoning the water you are in unless you move seems to appeal somehow. the way the genes change the rules subtly also adds to its fun factor, especially when amoeba become agressive and start preying on the other players genes. I'm glad its finally out in English rules and it has become a popular addition to my collection.