the rules of dungeons are complicated and a bit hard to explain so if you want to find them out you should go to your local hobby or book store and buy a players handbook or possibly a dungeon masters guide.
If you just want to know what it is about generally there are some common themes that you need to know about.
Maps - these are controlled by a special person. He or she has the full map in front of them and can see where everything is. The players only have as much information as can be worked out from where they are on their own map. As they move forward they build up a more complete map with every turn by drawing on the new bits and making notes about what is there (like an entrance to a tunnel they are not going down just yet).
Characters - these are chosen by the players and have aptitudes or talents for certain things (like moving quietly, being strong, picking locks and so on). As the game progresses and more and more tasks are undertaken the characters gain more experience and grow in their abilities. Some things will also occur that will damage characters and they may die. This is the excitement of the game.
Chance - the dungeon master or person who controls the game will have set traps and will have decided on the likelihood or chance of the trap going off. So say for instance there is a sleeping dragon there may be a one in 6 chance of waking the dragon - in which case you would have to decide what you are going to do with an awake, angry dragon. Let's say the dungeon master decides that the number 1 is the number that wakes the dragon the six sided die (singular of dice) would be thrown and if it landed on the one then the dragon wakes up. The dice are used throughout the game to decide many of the outcomes such as who will win a fight - even blow by blow damage.
Monsters and villains - the dungeon master will have some bad guys and some monsters scattered about the map. You may be trying to find one super baddie whom you will have to fight or outwit in the course of the game. There are generally points to be earned in tackling these creatures in the appropriate way - not always killing them.
Treasure - There are things to be collected throughout the game. Some things are worth more than others and some things are more valuable to certain characters than others. For instance a lock pick would be very useful to someone who has the skill to pick a lock but not to someone whose skill is hitting things with big weapons.
There is generally gold or jewels that can be collected and these can often be used to buy useful things in towns with shops or from people who come up to you in taverns.
This isn't meant to be very comprehensive but to give a broad overview of what to expect in a game. Try D&D wiki, I learned a ton from there.
dungeons and dragons
rougue worrior cleric mage
Beer and Board Games - 2010 Drunk Basic Dungeons and Dragons 4-1 was released on: USA: 23 January 2014
Dungeons & Dragons
The Production Budget for Dungeons and Dragons was $35,000,000.
Dungeons & Dragons is not, and never has been, banned in England.
As large as the smallest Dungeons & Dragons giant figure.
Dungeons and Dragons grossed $33,771,965 worldwide.
They entered through a Dungeons and Dragons themed rollercoaster.
Dungeons and Dragons grossed $15,185,241 in the domestic market.
Dungeons and Dragons.
SRD stands for System Reference Document. This applies to Dungeons and Dragons because it is a comprehensive tool box that is compatible with not only Dungeons and Dragons but also other roleplaying games.