Extremely Realistic Siege Warfare Simulator: online co-op

Sep 8, 2022
2+players

Early access

Action · War · RTS

Extremely Realistic Siege Warfare Simulator is a physics-based tactical strategy game where you must lead a military force in a fantasy medieval world. Build an army. Construct siege equipment. Experience epic battles. Lead your people to victory!!

54%Mixed380 Steam reviewsSteam Deck playable

Who can play

Store

Split-screen is not confirmed.
Online on PC. How many can join is not confirmed.
Free to play.

SteamPrice on SteamPlay free

Free to play

How it plays

Is it good

54%

Mixed on Steam

of 380 reviewsRead on Steam (opens the store in a new tab)

Steam Deck Playable

Every way to play together

Steam lists online co-op for PC. Free to play. Player counts are not confirmed yet. 54% positive of 380 Steam reviews.

- PC
PCStore (how we check facts)
Same screen
Not listed
Same room, own screens
Not listed
Online
2+players, co-op and versus

Play modes here come from the Steam store listing, which does not give player counts. How we check facts

Quick facts

Developer: Screambox Studio
Platforms: PC
Released: Sep 8, 2022 on PC
Early access: Still in early access on Steam
Languages: Text in 11 languages

In these lists

Answers

Updated October 27, 2026

Does Extremely Realistic Siege Warfare Simulator have couch co-op?: No same-screen play is confirmed. The Steam listing does not include it on PC. Online play is the way to play it together.
Do you need two copies of Extremely Realistic Siege Warfare Simulator?: No. It's free to play.; One of 1,371 co-op games where one copy is enough
What platforms is Extremely Realistic Siege Warfare Simulator on?: PC.; One of 3,994 co-op games
Does Extremely Realistic Siege Warfare Simulator work on Steam Deck?: Yes, with some extra steps: Steam rates it Playable for Steam Deck.
Is Extremely Realistic Siege Warfare Simulator free?: Yes, it's free to play.

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