Is Sins of a Solar Empire II co-op?

Yes, Sins of a Solar Empire II supports co-op.

Does Sins of a Solar Empire II have PvP?

Yes, Sins of a Solar Empire II has player-versus-player modes.

Do we both need to own Sins of a Solar Empire II to play together?

Yes. Sins of a Solar Empire II 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 Sins of a Solar Empire II?

About 544 players were in-game when this page's data was last refreshed (2026-09-09).

Can you play Sins of a Solar Empire II on LAN?

Yes. Steam lists LAN co-op and LAN PvP for Sins of a Solar Empire II, so it works on a local network without the game's online servers.

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Multiplayer games › Strategy › Real-time strategy

Is Sins of a Solar Empire II multiplayer or co-op?

Yes — co-op and PvP. Sins of a Solar Empire II is a real-time strategy game released in 2024, 86% positive on Steam (6,946 reviews), with 544 playing right now. $49.99 on Steam.

Co-opPvPSingle-player tooStrategy · Real-time strategy

Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force,…

How Sins of a Solar Empire II plays with friends, according to Steam

Online co-op: Yes
Local / split-screen co-op: Not listed on Steam
Online PvP: Yes
LAN play: Yes
Cross-platform multiplayer (Windows / Mac / Linux): Yes
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: Space, Strategy, 4X, RTS, Singleplayer, Sci-fi, Multiplayer, Tactical

Do you and a friend both own Sins of a Solar Empire II?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Sins of a Solar Empire II 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 Sins of a Solar Empire II? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Sins of a Solar Empire II co-op?: Yes, Sins of a Solar Empire II supports co-op.
Does Sins of a Solar Empire II have PvP?: Yes, Sins of a Solar Empire II has player-versus-player modes.
Do we both need to own Sins of a Solar Empire II to play together?: Yes. Sins of a Solar Empire II 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 Sins of a Solar Empire II?: About 544 players were in-game when this page's data was last refreshed (2026-09-09).
Can you play Sins of a Solar Empire II on LAN?: Yes. Steam lists LAN co-op and LAN PvP for Sins of a Solar Empire II, so it works on a local network without the game's online servers.

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