The Castle Doctrine
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.
Steam estimates, not reported sales. Net is after modeled deductions; gross is before them. Est. lifetime gross (USD): $38.6K. Estimate date: 2026-03-01. Confidence: 68% · Net revenue range: $14.7K – $29K. Confidence is a model quality score, not a probability of success.
Game Details
System 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
Additional Information
The Castle Doctrine is entirely the work of me, Jason Rohrer, and I hereby place it in the public domain with absolutely no restrictions on use or modification for any purpose. Access to the central game server, which I run, is restricted to those that have purchased such access, but the server code is in the public domain also, so you are free to run or modify your own server with absolutely no restrictions.