Gatekeeper is a premium action game developed by Gravity Lagoon and published by HypeTrain Digital. This dynamic PC game seamlessly integrates fast-paced action with roguelike elements, immersing you in a quest to recover the stolen Heart of the universe. The journey ahead is challenging, filled with intense battles against swarms of mechanical enemies.

Gatekeeper features a diverse selection of playable characters for you to choose from. You can also explore a range of unique locations within the game world. Additionally, enjoy the flexibility of playing solo or teaming up with up to four players in cooperative multiplayer mode.

Journey to reclaim the universe's heart

In Gatekeeper, the storyline unfolds with the universe's heart being stolen by formidable dark forces. Your objective is to reclaim this heart by embarking on a perilous journey through unknown galaxies filled with challenges and dangers. Retrieving the universe's heart won't be easy—it is hidden and kept within a quantum cage guarded by ancient giants known as the Sirens.

In this action-packed game, you have a diverse selection of nine playable characters, each with its own distinct abilities and powers tailored to your play style. As you advance and accumulate experience, you can upgrade and strengthen your character's skills. Additionally, discover and strategically use artifacts to gain an edge in combat against your enemies. Over 100 collectible items can transform your gameplay experience, ensuring each run is exciting.

In addition, this game features five distinct, procedurally generated planets—each with its own visual style, enemies, and environmental hazards. As previously mentioned, this game offers the flexibility to play solo or join forces with up to four friends in co-op multiplayer mode. In terms of drawbacks, new players might find the game's challenging nature and complex gameplay mechanics to present a steep learning curve.

All-time low price for a limited time

Gatekeeper launched with a 35% discount to celebrate its full release, marking the lowest price the game has seen on Steam so far. It’s also the biggest discount the publisher has offered, making it a great time for new players to jump in. The sale runs until August 16, 2025. The Deluxe Edition bundle is also 35% off and includes both the base game and the Supporter Pack.

Exciting action with a learning curve

Gatekeeper, developed by Gravity Lagoon, delivers a thrilling blend of fast-paced action and roguelike elements as you embark on a quest to reclaim the stolen Heart of the universe. With diverse playable characters, unique locations to explore, and solo or cooperative multiplayer options, the game promises excitement and strategic depth. However, new players might face challenges due to its complex mechanics and demanding gameplay.