D&D Dice Generator
Throwing any dice with 3D animation
to roll
Roll D20 dice online (d20)
Forgot your dice at home or need a quick stealth check?
This is a specialized online D20 dice for masters and players of tabletop role-playing games (Dungeons & Dragons, Pathfinder, Starfinder). Our algorithm guarantees a fair distribution of probabilities (True Random) - no “twisted” throws, as happens with cheap plastic dice.
What is this cube used for?
- ⚔️ Attack Rolls: Whether you penetrated the enemy's armor (AC).
- 🛡️ Saving Throws: Whether you dodged a fireball or poison.
- ✨ Ability Checks: Persuasion, Athletics, Perception and other skills.
🎲 How to calculate the final result?
In D&D, rolling the dice is only half the battle. The final value is calculated using the formula:
Difficulty Class
The Dungeon Master (DM) determines the challenge's difficulty (DC). To succeed, your final score must be equal to or higher than this number:
| Difficulty (DC) | Task example |
|---|---|
| 5 (Very easy) | Jump over the puddle |
| 10 (Easy) | Knock down the flimsy door |
| 15 (Medium) | Hear the guard's footsteps |
| 20 (Difficult) | Sail through the storm |
| 25 (Very difficult) | Get past the dragon unnoticed |
| 30 (Almost impossible) | Convince the king to give up the crown |
Critical successes and failures
In battle, “pure” values on the sides of the cube (without modifiers) are of particular importance:
Nat 20
Critical success! Your attack hits automatically, regardless of the target's armor. Damage from all damage dice is doubled.
Nat 1
Critical failure. A failure is guaranteed. Often the master can add a comical or dire consequence (dropped the sword, hit an ally).
Advantage and Disadvantage
This is one of the main mechanics of 5th edition D&D:
- Advantage: Roll 2 d20 dice and choose the best result.
- Disadvantage: Roll 2 d20 dice and choose the worst result.
Frequently asked questions (FAQ)
🎲 How fair is this random?
Absolutely. We use the cryptographically strong Web Crypto API algorithm. The chance of landing any edge from 1 to 20 is exactly 5%. This is more reliable than physical cubes, which may have a displaced center of gravity due to air bubbles.
📱 Can I use it from my phone?
Yes, the page is fully adapted for smartphones. This is an ideal solution when you don't have room for a dice tower on your gaming table or when you're playing on the go.