Is Operation: Harsh Doorstop co-op?

Yes, Operation: Harsh Doorstop supports co-op.

Does Operation: Harsh Doorstop have PvP?

Yes, Operation: Harsh Doorstop has player-versus-player modes.

Do we both need to own Operation: Harsh Doorstop to play together?

Yes. Operation: Harsh Doorstop is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.

How many people play Operation: Harsh Doorstop?

About 119 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › Shooter › Tactical & milsim

Is Operation: Harsh Doorstop multiplayer or co-op?

Yes — co-op and PvP. Operation: Harsh Doorstop is a tactical & milsim game released in 2023, 77% positive on Steam (18,420 reviews), with 119 playing right now. Free on Steam.

Co-opPvPSingle-player tooShooter · Tactical & milsim

Operation: Harsh Doorstop is the ultimate, free to play, tactical shooter sandbox. Play singleplayer, multiplayer, or co-op modes and explore thousands of…

How Operation: Harsh Doorstop plays with friends, according to Steam

Online co-op: Yes
Local / split-screen co-op: Not listed on Steam
Online PvP: Yes
LAN play: Not listed on Steam
Single-player mode: Yes
Mods: Steam Workshop

Steam's own category list for the game, as of 2026-09-09. "Not listed" means the store page does not claim that mode; community mods or Remote Play can still add it.

Steam tags: Free to Play, Military, FPS, Realistic, Multiplayer, Tactical, Shooter, Action

Do you and a friend both own Operation: Harsh Doorstop?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Operation: Harsh Doorstop 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 Operation: Harsh Doorstop you can play together

Tom Clancy's Rainbow Six Siege

Tactical & milsim · 84% positive on Steam (1,398,584 reviews) · 51,847 playing right now

Arma Reforger

Tactical & milsim · 76% positive on Steam (30,623 reviews) · 11,466 playing right now

Squad

Tactical & milsim · 83% positive on Steam (210,551 reviews) · 9,116 playing right now

Arma 3

Tactical & milsim · 90% positive on Steam (283,264 reviews) · 7,181 playing right now

Ready or Not

Tactical & milsim · 89% positive on Steam (236,196 reviews) · 4,296 playing right now

Hell Let Loose

Tactical & milsim · 82% positive on Steam (137,677 reviews) · 3,380 playing right now

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

Quick answers

Is Operation: Harsh Doorstop co-op?: Yes, Operation: Harsh Doorstop supports co-op.
Does Operation: Harsh Doorstop have PvP?: Yes, Operation: Harsh Doorstop has player-versus-player modes.
Do we both need to own Operation: Harsh Doorstop to play together?: Yes. Operation: Harsh Doorstop is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.
How many people play Operation: Harsh Doorstop?: About 119 players were in-game when this page's data was last refreshed (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 2026-09-23. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. Ready Up is a Somebody Decide program. How the data works · Legal & privacy · All types · Game Pass