Civilization Music

Two things in this world I have soft spots for are the Civilization franchise, and study music. Incidentally the two cross over really well. The Civ series incorporates classical music, and as a result makes great background noise for studying. A few months ago I created a very incomplete Spotify playlist of music from Civilization V and it has picked up a number of subscribers, so maybe it is worth sharing? The fourth game's music is just as worthwhile, and includes Jonh Adam's Shaker Loops.

Unfortunately, there are a lot of in-house music that is missing from this playlist. Field of Poppies is a stand out piece all on its own, as the title suggests, it invokes the imagery of a serene field of poppies waving in the wind. You can't find this music on Spotify, but if you buy the games you can extract them uncompressed no problem. A few years ago I got the game complete with expansions on Steam for $19.99, and it is possible that you can get it for even cheaper now, especially during a sale season. Then all you have to do is go to the music directory, which is located (if you bought the game on Steam, and installed it into the default path) in: C:\Program Files\Steam\steamapps\common\sid meier's civilization iv beyond the sword\Assets\Sounds :

Civilization IV Music Directory

Enjoy!

Playing The Computer

Civilization Five and Two have
some... fundamental difference

PC Gamer published an article about some folks over at MIT who created a smarter AI. The article is misleading because it shows images of Civilization V, although the academic text says the study was conducted on Civilization II. Nevertheless this is still a very impressive endeavor!

Computer AI in strategy games has been proven to be... well stupid. It usually is way too much of an undertaking to create anything that really classifies as artificial intelligence. Instead the game developers give the computer an unfair advantage by letting it cheat. Maybe supplying it with more resources for example. Racing games like Need For Speed are infamous for incorporating this into their games. Called "rubber band" AI: the computer simply speeds up to catch up with you, and offer more of a challenge.

In this study the researchers incorporated the CIV rule book into a search framework, and in this case, also had the AI learn strategies through playing. The Monte Carlo search framework has been used in board games before, and considering Civilization is essentially a high functioning board game, it makes a good choice for this study. It is important to note that the instruction books for Civilization games are notoriously known for being massive.

The Guidebook for CIV II, not the box.

Parts of the manual were selected for relevance. Knowing to build your cities on tiles with rivers running through them is more important than say, being able to name your city whatever you want. The AI then incorporates states with actions, such as "use engineers improve" with "terrain within the city radius". It also does a calculation for an "action value" which is based on different states in the game (including simulated game play), and decides the best move to make. I am curious as to how much more machine resources all this new computing requires.

Due to the massive size of the civilization books I wouldn't expect this sort of AI to show in in every video game just yet. But as a big fan of strategy video games I hope I start encountering smarter AI soon!

I really am interested in the content of this academic article. If there is anyone out there who knows about this stuff I would love to talk to you! For everyone else who is interested, you can read, the academic text here. Just in case I also have cited the article at the bottom of this post. The project website can be found here.

Branavan, S.R.K., David Silver, and Regina Barzilay. "Learning to Win by Reading Manuals in a Monte-Carlo Framework." (2011). MIT.edu. MIT. Web. 5 Aug. 2011. <http://people.csail.mit.edu/branavan/papers/acl2011.pdf>.