An offensive CR is computed from the average damage per round.
All attacks and actions are assumed to hit/do full damage. Multitarget actions are assumed to do 2x damage. Limited use, recharge, and spellcasting abilities are used only once in these three rounds (so if you do decide to cast, say, fireball three times in a row, this will not capture that).
The damage per round is averaged over three rounds, assuming the monster uses its most damaging attacks every round.
The app tries to compute CR as described in the 5e Dungeon Master's Guide: Stat must be one of: STR, DEX, CON, INT, WIS, CHAįirst of all, the CR calculation displayed at the bottom of the page is just a suggestion and can be ignored entirely if you want. Using for computing a Save DC based on the given stat. 5emm.json format allows you to import it back into the app to continue work later. To export it to a file, click on the download icon in the top right. The current monster that's being worked on in the app is automatically saved every time you make a change. If something looks off or breaks, let me know via an issue! Here are a few things to know though: Saving There are a few examples of SRD monsters in the data folder of the repository. The best way to see what the application can do is to just try making a monster. The application automatically shortens these links with TinyURL before copying to clipboard. Here's a link to the Adult Frost Dragon shown in the screenshot.
Sharable Link: Send a direct link to your monster in the 5emm app.
PDF: Use the standard print button on your browser to save the stat block to PDF.
Tarrasque.io JSON: For use with the Tarrasque.io virtual tabletop.
Markdown: For use with Homebrewery, GMBinder, or other editors that accept that Markdown format.
JSON: For later editing with the 5e Monster Maker.
Add your own traits, actions, and attacks as templates for re-use.
Templates: Apply attacks, traits, or other actions to a creature from a preset library.
Displays an explanation of each component when hovered.
Automatic CR Estimate: Simplifies CR calculations by doing them for you and updating as monster stats and traits are updated.
Custom spells can be added, imported, and exported if you need a homebrew spell.
Spellcasting Support: Create class-based lists or innate spellcasting lists.
Reactive: Modifiers for attacks and saves are automatically calculated from core stats.
Fast: Quickly create stat blocks by filling in a form, rather than typesetting everything by hand.
A monster stat block builder for the 5th edition of Dungeons and Dragons.