An Event is that we play a giant map that hardly beaten. If you're a fan of CSS Ze community you will find soon. Every ZE server does an event once a week and some ZE server does every 2 week such as GFL. Depend on their server activity time zone. First of all, event maps are mostly hard enough beaten and which make more interest & inspired the player to be part of it and knowledge that they are a part of winning the event and eventually, you will reward with temporarily of VIP short term. Depending on how many stage you beat. Example if the player beat 2-3 stage the player will receive 1 or 2 day VIP. If beaten all stage probably the player would be reward with 1 week of VIP. So once you're VIP is gone, you can re-participate in the event match and being a part of it & will be reward again.