Is Gatekeeper multiplayer or co-op?

Yes — co-op and PvP. Gatekeeper is a co-op horde shooter game released in 2025, 85% positive on Steam (1,653 reviews), with 26 playing right now. $8.99 on Steam.

Steam tags: Early Access, Online Co-Op, Action Roguelike, Bullet Hell, Aliens, Rogue-lite, Top-Down Shooter, Multiplayer

Do you and a friend both own Gatekeeper?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Gatekeeper is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Or open the Steam store page.

Games like Gatekeeper you can play together

Tired of Gatekeeper? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Gatekeeper co-op?

Yes, Gatekeeper supports co-op.

Does Gatekeeper have PvP?

Steam's store page doesn't flag a PvP category, but Gatekeeper is tagged competitive — it's player-versus-player.

How many people play Gatekeeper?

About 26 players were in-game when this page was built (2026-09-09).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-09. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. How the data works · Legal & privacy · All types · Game Pass