Extremely Realistic Siege Warfare Simulator

Physics-based siege strategy with armies you command and castles you breach

Screambox Studio · Released Sep 7, 2022 · Early Access

Action Adventure Casual Indie RPG Simulation Strategy Free To Play

Early Access, no updates for over a year

Reviews: Mixed; 56% of 398
Recent reviews: Not enough recent
Players: 12; daily peak, Nov 7, 2026
Steam Deck: Playable
Last update on Steam: 1 year ago; May 9, 2025
Minimum PC: GeForce GTX 670; 8 GB RAM · 2 GB disk; Full requirements

What is Extremely Realistic Siege Warfare Simulator?

This tactical strategy game takes place in a fantasy medieval world. You build armies and siege equipment, then direct troops in castle assaults where physics can affect the outcome. Time slows while you select troops, and you can take control of a commander in close combat. It has single-player and multiplayer modes.

For you if...

+you like planning castle assaults with physics-based outcomes
+you want to command troops and join close combat
+you want both solo and multiplayer siege battles

Not for you if...

−you prefer direct action without organizing troops and siege equipment
−you dislike battles where physics can change the outcome

What players say

56% of 398 reviews are positive

Players complain that extra troop options cost money after the game became free to play.

Screenshots and trailer

Extremely Realistic Siege Warfare Simulator screenshot 1

Extremely Realistic Siege Warfare Simulator system requirements

Minimum: GeForce GTX 670, 8 GB RAM, 2 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 10 or later
Processor: Intel® Core™ Duo or better
Graphics: NVIDIA GeForce GTX 670 or better
Memory: 8 GB RAM
Storage: 2 GB available space
DirectX: Version 9.0c

Does Extremely Realistic Siege Warfare Simulator have co-op or multiplayer?

Yes: co-op online; PvP online. It also has a single-player mode.

Does Extremely Realistic Siege Warfare Simulator run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
The native resolution is not the default one
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Family Sharing
Languages: Text only: English, Simplified Chinese, Traditional Chinese, French, Spanish - Spain, Russian, Japanese, Portuguese - Portugal, Korean, Italian, German.

Does Extremely Realistic Siege Warfare Simulator use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 25, 2026. How to filter AI games on Steam