Is Dungeon Siege III co-op?

Yes, Dungeon Siege III supports co-op.

Does Dungeon Siege III have PvP?

Steam does not list PvP for Dungeon Siege III.

Do we both need to own Dungeon Siege III to play together?

Yes. Dungeon Siege III 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 Dungeon Siege III?

About 9 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 › RPG › Action RPG & dungeon crawler

Is Dungeon Siege III multiplayer or co-op?

Yes — co-op. Dungeon Siege III is an action rpg & dungeon crawler game released in 2011, 57% positive on Steam (2,867 reviews), with 9 playing right now. $14.99 on Steam.

Co-opSingle-player tooRPG · Action RPG & dungeon crawler

Fight hordes of dangerous creatures in a mystical fantasy world.

How Dungeon Siege III 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: RPG, Action, Fantasy, Action RPG, Co-op, Dungeon Crawler, Local Co-Op, Singleplayer

Do you and a friend both own Dungeon Siege III?

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

Or open the Steam store page.

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

Quick answers

Is Dungeon Siege III co-op?: Yes, Dungeon Siege III supports co-op.
Does Dungeon Siege III have PvP?: Steam does not list PvP for Dungeon Siege III.
Do we both need to own Dungeon Siege III to play together?: Yes. Dungeon Siege III 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 Dungeon Siege III?: About 9 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