You are what is left of the Grey Goo, a mass of nano particles with a swarm intelligence.
Your enemies will wipe you out, so try to stay alive as long as possible.
While they are approaching you, the enemy forces will constantly shoot at the mother goo in the center. You loose, once the mother goo has no mass left.
Defend the mother goo by launching lumps of yourself (bloblets) towards the enemy. Click anywhere on the map to launch a bloblet. Be careful, this will sacrifice some of the mass.
Bloblets will hunt down up to two enemies and transform them into grey goo mass, healing the mother goo.
If enemies detect a fallen comrade being consumed, they will stop shooting at the mother goo and instead go to destroy the remains and the bloblet.
Can you find the hidden ending?