Does Fortified have PvP?

Steam does not list PvP for Fortified.

How many people play Fortified?

About 1 players were in-game when this page was built (2026-09-09).

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Multiplayer games › Shooter › Co-op horde shooter

Is Fortified multiplayer or co-op?

Yes — co-op. Fortified is a co-op horde shooter game released in 2016, 75% positive on Steam (1,710 reviews), with 1 playing right now. $14.99 on Steam.

Co-opSingle-player tooShooter · Co-op horde shooter

Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp…

Steam tags: Action, Tower Defense, Indie, Co-op, Strategy, Multiplayer, Third-Person Shooter, Aliens

Do you and a friend both own Fortified?

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

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

Quick answers

Is Fortified co-op?: Yes, Fortified supports co-op.
Does Fortified have PvP?: Steam does not list PvP for Fortified.
How many people play Fortified?: About 1 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; updated 2026-09-09. Powered by Steam — not affiliated with or endorsed by Valve Corporation.