D-Ratio (Dragon Quarter)
Within the world of Breath of Fire: Dragon Quarter, every person is assigned a D-Ratio. This indicates their chances of linking with any available Dragon, and is also indicative of their social status. "Low-D"'s are at the lowest end of the pecking order, while Dragon Quarters are the most respected. Members of Trinity have their D-Ratios removed, although how this is achieved is not specified.
D-Ratios range from 1/4 (the aforementioned Dragon Quarter) to 1/8192, as Ryu begins the game. The full range of D-Ratios shown within the game are as follows;
The only other character with a noted D-Ratio is Bosch at 1/64.
 D-Ratios within the Game
Within the game, Ryu's D-Ratio can be lowered with subsequent playthroughs. Although this makes no difference to the plot - Bosch will still comment on Ryu's Low-D even when it is higher than his own - it does unlock more areas for the player to explore.
When starting a new game plus, the new D-Ratio is determined by how many points the player has earned in a number of criteria. These are as follows;
Simply put, the amount of time taken to clear the game completely.
|Extra Turn Percentage||Points|
This reflects the number of random encounters that are begun by your characters attacking the monsters, rather than vice-versa. With a little practice and good use of the PETS system, you can easily get a high ranking here.
|Map Completion Percentage||Points|
It is impossible to complete over 98% of the map in your first playthrough, simply because some areas are not unlocked without a lowered D-Ratio.
To fill in part of the map, it is sufficient simply to open the relevant (usually yellow) door.
|Treasure Boxes Opened||Points|
The number of treasure boxes opened by your party. Again, this is easier on a subsequent playthrough, since the new areas tend to contain several treasure boxes.
|Number of Saves||Points|
When it comes to saving, less is better.
Of course, it helps to have a lot of time free, and be reasonably confident in your abilities.
In addition to the above, the average level of your party is added to your total number of points.
Your total score results in a D-Ratio as follows;
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