# Rounds

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Get ready to make crucial decisions that will determine your fate as you navigate through an ever-expanding web of routes and possibilities!
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## Overview

* Rounds can last 2 to 6 hours
  * At the start, to encourage faster gameplay, rounds will be shorter.
  * Over time, as more users are joining, the round length will increase
* Once the round timer ends, anyone can call the round. The protocol will call the round eventually if no one else does.
* Once the round ends, boarding is closed and the busses are off to their final destinations!
* [Chainlink VRF](https://docs.chain.link/vrf) determines the surviving buses.
* The next round starts as soon as anyone boards a bus.

<figure><img src="https://700087270-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F5ymDpMbUGXY5Q7DDOg58%2Fuploads%2F8DBUXONOOmAgXYJXGeIE%2Fclocktower.png?alt=media&#x26;token=d190b628-7125-4ea9-8b65-1823b4ff4b85" alt=""><figcaption><p>Buses leave the Station ever 6 hours.</p></figcaption></figure>