Dojo is a web app for D&D (5E) dungeon masters.
You can find it at https://andyaiken.github.io/dojo/.
If you would like to contribute to development, have a look here.
You can build your own monsters with the built-in monster designer, which lets you check your creations against other similar monsters. Or you can let the app do it for you - just select a few monsters and let it splice them together into a new hybrid monster.
The app comes with all the standard monsters from the official D&D system reference document, and you can also quickly import a monster from D&D Beyond.
The encounter builder allows you to build combat encounters, and even split an encounter into multiple waves. You can check your encounter's difficulty for a group of PCs, and the calculations are all done for you. You can even ask it to build you a totally random encounter.
You can create your own tactical maps by placing and dragging map tiles around a board, or by importing image files. Your map can include standard features like doors and stairs, and you can add notes to significant locations on the map.
With the click of a button you can add a random room to the map, or generate an entirely random three-room dungeon delve or a larger ten-room dungeon.
Maps you create can then be used in the...
The app can help you to run combat encounters, taking care of the initiative order, monster hit points, and conditions. You can see at a glance which combatants are concentrating, which are prone or unconscious, which are affected by spells like bless and bane. If your encounter contains a monster with a rechargable action, the app will prompt you to roll to recharge it. The app will also remind you about legendary actions and lair actions.
If you're using a tactical map for your encounter, you can move tokens around the map, or add overlays to represent significant regions (such as spell effects or monster auras).
If you have a second display, the app can show a separate window including the initiative list (which includes relevant condition information) and a copy of the map, if you're using one.
You can write your own adventures in Dojo. An adventure looks like a flowchart, to which you can add encounters and handouts.
You can even generate an entire dungeon delve, with a map and encounters, with a single click, and get a quick visual indication of how difficult it will be.
Who needs a DM screen, when you have all this at your fingertips?
- a die roller if you want to go all-digital
- a name generator for NPCs
- references for skills, conditions, and combat actions
- a text generator that can quickly give you whole paragraphs of Elvish, Dwarvish, Orcish, Draconic, and so on
- a party reference screen to show you the party's spoken languages and passive skills at a glance
