Is Outpost: Infinity Siege co-op?

Yes, Outpost: Infinity Siege supports co-op.

Does Outpost: Infinity Siege have PvP?

Steam does not list PvP for Outpost: Infinity Siege.

Do we both need to own Outpost: Infinity Siege to play together?

Yes. Outpost: Infinity Siege 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 Outpost: Infinity Siege?

About 98 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 › Looter shooter

Is Outpost: Infinity Siege multiplayer or co-op?

Yes — co-op. Outpost: Infinity Siege is a looter shooter game released in 2024, 67% positive on Steam (13,066 reviews), with 98 playing right now. $24.99 on Steam.

Co-opSingle-player tooShooter · Looter shooter

Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of…

How Outpost: Infinity Siege plays with friends, according to Steam

Online co-op: Yes
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: Robots, 3D, Base-Building, Tower Defense, FPS, Resource Management, Co-op, Singleplayer

Do you and a friend both own Outpost: Infinity Siege?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Outpost: Infinity Siege 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 Outpost: Infinity Siege you can play together

Warframe

Looter shooter · 87% positive on Steam (626,503 reviews) · 36,195 playing right now

Destiny 2

Looter shooter · 80% positive on Steam (625,616 reviews) · 24,619 playing right now

Borderlands 2

Looter shooter · 92% positive on Steam (295,218 reviews) · 8,551 playing right now

Tom Clancy’s The Division® 2

Looter shooter · 76% positive on Steam (22,368 reviews) · 9,481 playing right now

Risk of Rain 2

Looter shooter · 93% positive on Steam (313,577 reviews) · 7,902 playing right now

Borderlands 3

Looter shooter · 84% positive on Steam (149,065 reviews) · 3,164 playing right now

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

Quick answers

Is Outpost: Infinity Siege co-op?: Yes, Outpost: Infinity Siege supports co-op.
Does Outpost: Infinity Siege have PvP?: Steam does not list PvP for Outpost: Infinity Siege.
Do we both need to own Outpost: Infinity Siege to play together?: Yes. Outpost: Infinity Siege 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 Outpost: Infinity Siege?: About 98 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