Overview

The Heart of Time has been stolen by Chaos's most powerful minions, and it's up to you and your allies to retrieve it. Gatekeeper plunges players into an action-packed adventure where the path to confronting Chaos is fraught with peril.

You'll need to overcome elite Sirens and their endless legions before facing the ultimate boss. This indie title from Gravity Lagoon, published by HypeTrain Digital, offers a thrilling blend of roguelike challenges and intense bullet hell action.

Highlights

  • Diverse Playstyles: Choose from 9 unique playable characters, each boasting distinct skills to complement your preferred approach to combat.
  • Cooperative Mayhem: Team up with friends for an epic power-fantasy adventure, tackling the challenges of Chaos together in online co-op.
  • Infinite Replayability: Experience endless combinations and unlock new possibilities as you gain experience, ensuring each playthrough offers fresh challenges and discoveries.

Who It's For

Gatekeeper is perfect for players who enjoy fast-paced action, challenging combat, and the thrill of cooperative play. If you're a fan of roguelikes, bullet hell shooters, or simply love teaming up with friends to overcome daunting odds, this game is sure to deliver.

The variety of characters and the promise of endless combinations also appeal to those who appreciate strategic depth and character progression.

Game Info

Developed by Gravity Lagoon and published by HypeTrain Digital, Gatekeeper is a single-player and co-op action roguelike with bullet hell elements. It features 9 playable characters, offering a deep well of replayability.

The game supports online co-op, allowing friends to join the fight. Gatekeeper was released on August 1, 2025, and is available in multiple languages, including English, Japanese, and Simplified Chinese.

Steam user reviews have been overwhelmingly positive, highlighting its engaging gameplay and cooperative features.