How Combat Works in D&D
Combat is one of the most exciting parts of Dungeons & Dragons, but it can also be intimidating when you’re just starting out. Fortunately, combat follows the same basic sequence every time it begins.
Once you understand initiative, turns, movement, and actions, you’ll be able to jump into your next encounter with confidence.
Let’s break it down step by step.
Step 1: Roll Initiative
When combat begins, every creature rolls Initiative to determine who acts first.
You’ll find your Initiative modifier on your character sheet. For most characters, Initiative is calculated as:
D20 + your Dexterity modifier
For example:
- Rogue rolls 16, their Initiative is 3. Total = 19
- Wizard rolls 15, their initiative is a 1. Total = 16
- Goblin rolls 12, their initiative is a 2. Total = 14
- Fighter rolls 9, their initiative is a 3. Total =12
Combat always proceeds from the highest Initiative roll to the lowest. Once everyone has taken their turn, the order repeats until combat ends.
Step 2: Take Your Turn
Combat is divided into turns. When it’s your turn, you’ll usually have the opportunity to:
- Move up to your Speed
- Take one Action
- Use one Bonus Action (if you have an ability that allows it)
- Potentially use a Reaction later in the round
Once your turn is over, the next player or npc in the Initiative order takes theirs. After everyone has acted, a new round begins.
Step 3: Understanding Rounds
A round is completed once every creature in combat has taken a turn.
Although players take turns one at a time, everything that happens during a round is assumed to occur over roughly six seconds. Think of it as everyone acting at nearly the same time, with Initiative simply helping organize the order of play.
Step 4: Movement
Every character has a movement speed, which determines how far they can move during their turn.
For example:
- Human: 30 feet
- Dwarf: 25 feet
- Elf: 30 Feet
- Halfling: 25 Feet
You don’t have to use all of your movement at once. You can move, take an Action, and then continue moving as long as you haven’t exceeded your total movement for the turn.
If you want to move farther than your speed allows, you’ll need to use the Dash Action, which we’ll cover next.
Step 5: Taking Actions
Your Action is the primary thing you do on your turn.
Some common Actions include:
- Attack
- Cast a Spell
- Dash
- Disengage
- Help
- Hide
Attack
The Attack Action allows you to make an attack with a weapon, such as swinging a sword or firing a bow. You’ll normally make an attack roll to determine whether you hit your target and then roll damage if the attack succeeds.
Some characters eventually gain the ability to make multiple attacks with a single Attack Action through features such as Extra Attack.
Cast a Spell
You can use your Action to cast a spell that has a casting time of one Action. This could mean attacking an enemy, healing an ally, protecting yourself, or creating another magical effect.
Not every spell uses your Action, so always check the spell’s casting time.
Need help understanding magic? Check out our Spells, Cantrips, and Spell Slots Explained guide.
Dash
The Dash Action gives you additional movement equal to your Speed.
For example, if your Speed is 30 feet, you can move your normal 30 feet and gain another 30 feet of movement by Dashing.
Remember that Dash uses your Action, so you normally won’t be able to use that Action to attack afterward.
Disengage
The Disengage Action allows you to safely move away from enemies.
After you Disengage, your movement doesn’t provoke Opportunity Attacks for the rest of your turn. This makes Disengage useful when you need to retreat or reposition without giving a nearby enemy a free chance to attack you.
Help
The Help Action allows you to assist another character.
You can help an ally with an ability check, or during combat, you can distract an enemy to make it easier for an ally to attack them. This can give your ally Advantage on their next attack against that enemy.
Help is a good reminder that your turn doesn’t always have to be about dealing damage.
Hide
The Hide Action allows you to attempt to conceal yourself from enemies.
Whether you can successfully hide depends on your surroundings and whether enemies can still see you. Hiding generally involves making a Dexterity (Stealth) check.
Successfully hiding can make it easier to avoid detection and potentially give you an advantage when attacking from an unseen position.
Step 6: Bonus Actions
Some classes, subclasses, spells, and abilities allow you to take a Bonus Action.
Unlike your regular Action, you don’t automatically have a Bonus Action every turn. You only get one if something specifically says you can use it.
Some common Bonus Actions include:
- Making an off-hand attack
- Casting Healing Word
- Using Second Wind (Fighter)
- Entering Rage (Barbarian)
Learning which abilities use your Bonus Action is one of the best ways to make your turns more effective.
Step 7: Reaction
Reactions happen outside of your turn whenever a specific trigger occurs.
You only get one Reaction per round, so it’s important to use it wisely.
One of the most common Reactions is an Opportunity Attack. If an enemy leaves your melee reach without taking the Disengage Action, you can use your Reaction to make a melee attack against them.
Other abilities, such as the Shield spell or Counterspell, also use your Reaction.
Want to learn more? Check out our guide on Actions, Bonus Actions, and Reactions Explained for a deeper look at how each of these resources works.
Step 8: Ending Combat
Combat usually ends when:
- One side defeats the other.
- One side successfully escapes.
- The conflict is resolved peacefully.
Remember, D&D is a roleplaying game, so combat doesn’t always have to end with every enemy defeated. Clever thinking, negotiation, intimidation, or using your class abilities creatively can completely change the outcome of an encounter.
Sometimes the best victory is avoiding a fight altogether.