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Ideal for board games, war games (such as Warhammer) and rpg's like Dungeons & Dragons. Natural 20 is a dice rolling app which handles single and multiple dice rolls. Its comfortable to use, saves time, and its far better than carrying a box of dice to each game!

Natural 20 offers the following options to help you roll your dice:

~ Quick Roll
Simply pick your dice, and you have an instant result. Ideal for Dungeons & Dragons, Quick Roll offers the following eight dice; D2, D4, D6, D8, D10, D12, D20 and D100.

~ Multiple Dice
In multiple dice mode you can mix your dice together as you please. Tap each row to add five at a time, or use the plus or minus to add or remove one. Multiple dice mode has been designed with Warhammer in mind, and you can easily filter the dice at the touch of a button. The remaining dice can be rolled again to find out how many enemies you wound. Stats, such as average and the sum, are displayed for each roll saving you counting on screen. Buttons are provided to remove the highest or lowest rolls, as well as any range in between. By default this offers the same dice as Quick Roll, but you can easily add dice with custom numbers of sides through the Custom Die. Dice can be easily moved around the screen, simply tap on one, and choose another dice to swap places with it.

~ Custom Die
Custom Die lets you choose the number of sides. Your three most rolled custom dice are presented with their own buttons, providing a quick way to obtain a result. It is also possible to add a custom die permanently to the multiple dice collection. Just click on the save button after rolling your custom die.

~ Direction Die
This will point you in a totally random direction with each spin. Swipe the screen to spin it, however you can only influence which way it spins, not the outcome!

~ Colour Die
This will give you a random colour, just run your finger across the screen like a paintbrush. Displayed on the screen will be some basic information. For example the colour’s hex number, HSB and RGB values.

~ Teachers Die
Handy for the classroom, this die will be helpful for Maths and English. You can use it to randomly pick letters, numbers and mathematical operators. When picking letters you can specify if they are upper or lowercase, and also pick between vowels and consonants.

~ My Dice
My Dice allows you to save your own collections of dice, along with a description and optional modifier. These can be easily searched through, and rolled from a single tap.

~ Roll History
Natural 20 keeps track of all your rolls, so you can prove you actually rolled that 20! The dice stored in your history can be easily re-rolled and filtered. You can move the dice around the screen, and it will remember your order.

~ Distribution
Distribution allows you to create probability distribution plots for specified dice. These will show you the percentage chance of rolling a particular face value, and you can compare actual rolls against theoretical results. However, large numbers of dice can take a long time to calculate for theoretical plots.

Feature Summary:

* Handles single and multiple dice rolls
* Supports D2, D4, D6, D8, D10, D12, D20 and D100. More dice can be added.
* Multiple Dice can be easily filtered and rerolled
* Custom Die lets you roll using a specified number of sides
* Direction Die lets you spin a random direction
* My Dice allows you to store custom sets of dice
* Stores a history of your rolls
* Custom probability distribution plots
* iPad and iPhone support