Rollout is in Early Access. It's not finished. There are bugs.
As of now, there is a maximum of 20 players at one time.

Rollout is a multiplayer eat-to-grow, ".io" style game but, unlike others that you may have played, I've added an extra dimension. The goal is to grow as big as you can while not being eaten.

The rules are simple: Eat anything smaller than you and avoid anything bigger.

Controls:

Aim with mouse
WASD to move
Space to jump when you're big enough
Click to boost when you're big enough
Hold space to climb buildings when you're big enough
Use the scroll wheel to adjust how far the camera can see. Shorter distance == better performance.