You are sitting in a dark room surrounded by elves, dwarves, mages, clerics, and even the occasional paladin, “What do you do?”

This is a question that typically would be followed by a handful of dice being shaken furiously, dropped, and quickly counted to determine if the action taken is a success or a miserable failure. In today’s fast-paced D&D sessions, counting a 10d6 roll (10 6-sided dice) can take too long. This is where technology comes in.

Below is a short list of free apps available for the iPhone that can help streamline your game.

Dungeon Dice Roller
This free app is about as simple as it gets. You have a choice between a d4, d6, d8, d10, d12, and d20. Once you select the kind of die you wish to use, you hit roll to generate a random number within the die’s range. Unfortunately, you can only roll a single die at a time making the app pretty weak for high die-count rolls.

Dice Roller Touch
This app adds a bit more support for rolls requiring more dice than the Dungeon Dice Roller, though its interface certainly isn’t breathtaking. It does the job though, and works fairly well. If you’re looking for an interface that you can touch a d20 button three times to roll 3d20 then this app might just be for you.

Dice Bag
Dice Bag is, like Dungeon Dice Roller, a single-roll at a time app. You have photos of the different roll sets you can choose from including all of the traditional D&D die styles including d4, d6, d8, d10, d12, d20, d100, and a set of 3d6. A simple touch on the style of die you wish to roll gives you a canned roll sound the GM can be happy about as well as a color-coded result to insure there isn’t any funny business. This is one of my personal favorites to have with me when I go to a D&D game.

PocketDice
PocketDice gives you the ability to roll different styles of dice at the same time. You can do a roll of 3d6 or 4d6 + 1d20 or any other combination you can fit on the table. This app also utilized physics to create a MotionX style rolling experience. The downside is that a total isn’t automatically displayed on the screen so this app doesn’t really have much to offer in terms of time savings over traditional physical dice. In fact, the use of colors makes it difficult to read. I’m also noticing an issue with crashing on the iPod touch.

Feudz Free Dice Roller (Matt’s Pick)
Perhaps my favorite in this list is the Feudz roller. Everything from coin flips to D100 and custom rolls are supported in this free app. In fact, you can save frequently used formulas to keep from having to reenter them each time you launch the app. This is a brilliant tool for any table-top gamer whether you’re in to slaying dragons or hacking corporate systems in a CyberPunk 2020 setting.

Crit d20 Dice Roller
Crit d20 gives you a simple interface without a lot of hassle. You can mix and match dice styles and see individual counts as well as a grand total. For players that want a fast app that has a powerful set of features, Crit d20 is a strong offer.

Quick Roll
Quick Roll gives you a list of common saves you roll throughout a typical D&D game. Initiative, spell resistance, attack, defend, and many skill rolls are supported with this app. This is a great choice for players that are new to D&D and just want to enter their information once with only occasional updates.