Cosmic 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

Keep your steering smooth — jerky lane swaps cost runners on the barriers.

Play now — free!

No download · No sign-up