Cosmic March Siege

Free crowd-runner · boss siege

What is it?

A build-up run that funnels everything toward one enormous boss-horde siege Steer your swarm down a star-strewn cosmic causeway drifting through the void.

How to play

1. Press Play and steer your swarm to hoard every gate bonus.
2. Avoid needless fights — preserve runners for the siege.
3. Clear barriers efficiently without bleeding your numbers.
4. Arrive at the boss horde with the biggest army possible.

Pro tip

Skip fights you can't win and circle back once a gate has topped you up.

Play now — free!

No download · No sign-up