Ready Up — what game do we play?Compare two Steam libraries →
Multiplayer games › Shooter › Military shooter

Is Call of Duty: United Offensive multiplayer or co-op?

Yes — online multiplayer. Call of Duty: United Offensive is a military shooter game released in 2006, 87% positive on Steam (2,153 reviews), with 17 playing right now. $14.99 on Steam.

Online multiplayerSingle-player tooShooter · Military shooter

Award-winning developer Gray Matter Interactive follows up on the success of Infinity Ward's Call of Duty™ - winner of over 80 Game of the Year and 50 Editors'…

How Call of Duty: United Offensive plays with friends, according to Steam

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

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: Action, World War II, FPS, Singleplayer, Multiplayer, Shooter, Military, Classic

Do you and a friend both own Call of Duty: United Offensive?

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

Do you and a friend both own Call of Duty: United Offensive?Free, no login — uses public Steam profiles.

Or open the Steam store page.

Games like Call of Duty: United Offensive you can play together

Call of Duty®
Military shooter · 59% positive on Steam (714,114 reviews) · 67,419 playing right now
Battlefield™ V
Military shooter · 71% positive on Steam (250,288 reviews) · 6,327 playing right now
Battlefield™ 1
Military shooter · 86% positive on Steam (192,821 reviews) · 6,308 playing right now
Battlefield™ 2042
Military shooter · 47% positive on Steam (297,774 reviews) · 2,774 playing right now
Sniper Elite: Resistance
Military shooter · 71% positive on Steam (3,387 reviews) · 957 playing right now
Sniper Elite 4
Military shooter · 91% positive on Steam (59,155 reviews) · 541 playing right now

Tired of Call of Duty: United Offensive? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Call of Duty: United Offensive co-op?
Call of Duty: United Offensive does not list co-op on Steam; it has Online multiplayer, Single-player too.
Does Call of Duty: United Offensive have PvP?
Steam does not list PvP for Call of Duty: United Offensive.
Do we both need to own Call of Duty: United Offensive to play together?
Yes. Call of Duty: United Offensive 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 Call of Duty: United Offensive?
About 17 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