It’s been a very long road for Epic Games and their third person shooter, Fortnite. Originally announced all the way back in 2011, the game finally released last month as an early access product. With Fortnite now in players hands, Epic Games has revealed its plans to evolve the game through additional content such as Survive The Storm, which introduces new threats, new heroes, defenders, weapons, and much more. Before the update arrives next week, Epic Games has released a new trailer to get fans prepared.

Survive the Storm adds in a highly requested survival mode where teams gather resources during the day and gear up to face increasingly more difficult waves of zombies during the night. The twist here is that these storms add new modifiers to the Fortnite experience, such as making enemies enraged or lowering the health of the player characters. For overcoming these challenges, players will be rewarded with unique loot and tickets, which can be used to unlock nine weapons from the new Hydraulic Set.

Oddly enough, the trailer also reveals that this is a limited time event. According to a comment left by the Fortnite team on the trailer, the event is intentionally short because the studio wants player feedback to help tweak it going forward. For now, the more time players spend inside this new game mode, the more rewards will be handed out. This should make the weapon and character evolving process a little easier for those who don’t want to buy microtransactions.

This latest content update is Epic’s attempt to draw players that have left negative early reviews. Though it is still in early-access until sometime in 2018, Fortnite relies heavily on a complicated microtransaction system and a cool down system commonly seen in free-to-play titles. With Survive the Storm adding more things to do and alternate ways to unlock content, Epic Games appears to be committed to evolving the experience and listening to fan feedback.

Fortnite is available now in early access for PC, PlayStation 4, and Xbox One. The game’s full free-to-play release is scheduled for 2018.