How to Download The Castle Doctrine

1. Click on the The Castle Doctrine download button below.
2. Choose "Install" to install the game on the windows steam client.
3. Follow the on-screen prompts
4. Let it download the Full Version.
5. Once a game is downloaded, use the Windows Steam Client to play the game.

=== Download Game ====

Download for pc →

This guide describes how to use Steam Proton to play and run Windows games on your Linux computer. Some games may not work or may break because Steam Proton is still at a very early stage.

1. Activating Steam Proton for Linux:
Proton is integrated into the Steam Client with "Steam Play." To activate proton, go into your steam client and click on Steam in the upper right corner. Then click on settings to open a new window. From here, click on the Steam Play button at the bottom of the panel. Click "Enable Steam Play for Supported Titles."

Alternatively: Go to Steam > Settings > Steam Play and turn on the "Enable Steam Play for Supported Titles" option.

Valve has tested and fixed some Steam titles and you will now be able to play most of them. However, if you want to go further and play titles that even Valve hasn't tested, toggle the "Enable Steam Play for all titles" option.

2. Choose a version
You should use the Steam Proton version recommended by Steam: 3.7-8. This is the most stable version of Steam Proton at the moment.

3. Restart your Steam
After you have successfully activated Steam Proton, click "OK" and Steam will ask you to restart it for the changes to take effect. Restart it. Your computer will now play all of steam's whitelisted games seamlessly.

4. Launch Stardew Valley on Linux:
Before you can use Steam Proton, you must first download the Stardew Valley Windows game from Steam. When you download Stardew Valley for the first time, you will notice that the download size is slightly larger than the size of the game.
This happens because Steam will download your chosen Steam Proton version with this game as well. After the download is complete, simply click the "Play" button.

Windows Pc Requirements

Minimum:

• OS: XP or later
  
• Processor: 900 MHz
  
• Memory: 40 MB RAM
  
• Graphics: Onboard Graphics
  
• Network: Broadband Internet connection
  
• Storage: 10 MB available space
  
• Sound Card: Standard Audio

No maximum requirements!!

Linux Requirements

Minimum:

• Processor: 900 MHz
  
• Memory: 40 MB RAM
  
• Graphics: Onboard Graphics
  
• Network: Broadband Internet connection
  
• Storage: 10 MB available space
  
• Sound Card: Standard Audio
  
• Additional Notes: Binary was built on Ubuntu 12.04

No maximum requirements!!

Mac Requirements

Minimum:

• OS: 10.5 or later
  
• Processor: 900 MHz
  
• Memory: 40 MB RAM
  
• Graphics: Onboard Graphics
  
• Network: Broadband Internet connection
  
• Storage: 10 MB available space
  
• Sound Card: Standard Audio

No maximum requirements!!

The Castle Doctrine is a massively-multiplayer game of burglary and home defense. It's 1991, and things are bad. You're a guy with a house and family. Other players are coming to take what's yours. Build security to stop them. Study their houses, buy tools, and break in to take what's theirs.

The Castle Doctrine is a massively-multiplayer game of burglary and home defense. It's 1991, and things are bad. You're a guy with a house and family. Other players are coming to take what's yours. Build security to stop them. Study their houses, buy tools, and break in to take what's theirs. Everything you do is permanent.

I'm Jason Rohrer, and The Castle Doctrine is my 10th game. It's a bit hard to describe, because there's never been anything quite like it before. It's a brutal game in terms of its perma-death and perma-destruction consequences, and it is turn-based, so it's rather Rogue-like. But building such a brutal game in a multiplayer context, with absolutely no cushion between players to stop them from brutalizing each other, is quite strange and new.

Everything is real in this game. When you rob someone, you are actually hurting another player in a permanent way by destroying and stealing their hard work. When someone dies in this game, they lose everything and start over. If you devise perplexing security systems, you can perma-death other players when they come to rob you. Watching those security tapes, where someone gets what's coming to them, is an exhilarating experience. On the other hand, you just killed someone and perhaps caused them to lose days of their hard work. And you've been on the other side too, losing everything because of some thoughtless move you made in someone else's house.

But there is no randomness in this game, so everything is fair. When you die, it is always your fault. When things get dicey, you can always retreat back out the front door to save your own neck. Of course, human folly will get the better of you.

Here's what you get when you buy the game:

• A lifetime account on the central world server that I'm running.
  
• Access to the full game source code (after launching the game on Steam, go here).
  
• Everything you need to run your own game server (requires a PHP/MySQL web server, download the source bundle to get started).

“A powerful, memorable game.”
Alec Meer --- Rock, Paper, Shotgun

“Merciless and thoughtfully-designed... A brilliant but horrifying depiction of a risk society at war with itself.”
85/100 – Patrick Carlson --- PC Gamer

“The most disturbing game I've ever played.”
Russ Pitts (discussing his 5/10 Polygon review)