Project Update: BETA IS OUT!!! AUGUST 29TH, 2026
The official Mutants & Masterminds System for Foundry VTT Beta Is Here!
Hello, everyone!
Thank you for helping us beta test the official Mutants & Masterminds system for Foundry Virtual Tabletop. Your time, feedback, and willingness to put the system through its paces will help us create something better for the entire community.
Note: You must have pledged to the AEGIS Agent pledge level in order to be part of the Beta Test.
Note: You must have pledged to the AEGIS Agent pledge level in order to be part of the Beta Test.
Please remember that this is an unfinished beta—not the final product. Features may be incomplete, interfaces may change, and portions of the system’s underlying architecture may be rebuilt before release. Beta testing means actively trying the software, identifying problems, and reporting what you discover.
Please Join Us on Discord
If you have not already joined the Immersive Realms Discord server, we strongly encourage you to do so. The dedicated 3E Beta Test Feedback Forum is where we are collecting and organizing:
If you have not already joined the Immersive Realms Discord server, we strongly encourage you to do so. The dedicated 3E Beta Test Feedback Forum is where we are collecting and organizing:
- Bug reports
- Suggestions
- Module conflicts
Please use the forum’s posted guidelines and appropriate tags when submitting feedback. Before reporting a problem, disable all optional modules and attempt to reproduce it again.
- If the problem still occurs with every optional module disabled, report it as a Bug.
- If it only occurs while another module is enabled, report it as a Module Conflict and include that module’s name and version.
- If you have an idea for improving the system’s interface, layout, workflow, or functionality, submit it as a Suggestion.
Search the forum and review the pinned list of known issues before creating a new report. Keeping each post focused on a single issue will help us track, reproduce, and resolve problems more efficiently.
Join the Discord: https://discord.gg/KuFFRhU8E
Accessing Your Beta Manifest URL
You should have received an email from BackerKit containing the Manifest URL for the Mutants & Masterminds 3E Beta.
If you do not see the email, check your spam or junk folder. You should also be able to retrieve the Manifest URL by logging into your BackerKit account and opening your Digital Downloads.
Your Manifest URL provides access to the beta package. Please keep it private and do not post or share it publicly.
Before Installing
The beta currently supports Foundry VTT Version 13. Foundry VTT Version 14 is still under development and is not currently supported.
Make sure Version 13 is active before installing or using the beta.
Installing on a Self-Hosted Foundry Server
- Launch Foundry VTT and open the Setup screen.
- Confirm that you are running Foundry VTT Version 13. Version 14 is still under development and is not currently supported.
- Select the Game Systems tab.
- Click Install System.
- Copy the Mutants & Masterminds 3E Beta Manifest URL provided through BackerKit.
- Paste it into the Manifest URL field at the bottom of the installation window.
- Click Install and allow Foundry to download and install the system.
- After installation, create a new world and select the Mutants & Masterminds system from the Game System menu.
We recommend creating a dedicated test world rather than installing the beta into a world containing characters or campaign material you wish to preserve.
Installing Through The Forge
- Make sure Foundry VTT Version 13 is active for your Forge game. Version 14 is still under development and is not currently supported.
- Open The Forge and go to the Bazaar tab.
- Copy the Manifest URL for the Mutants & Masterminds 3E Beta from your BackerKit email or Digital Downloads.
- Click Install from Manifest in the upper-left corner of the Bazaar.
- Paste the link into the field labeled Enter the Manifest URL of the package to install.
- Make sure the Install from the Bazaar if the package is found toggle is turned off.
- Click Start to begin the installation.
- Once installation is complete, create or configure a Version 13 world using the Mutants & Masterminds system.
Do Not Create Permanent Characters Yet
We strongly recommend that you do not create characters you intend to keep or use in a future campaign nor start a game in a system currently in beta.
The system’s architecture may change during development. Fundamental character data, powers, items, or internal structures could be altered, requiring beta characters to be reworked or rebuilt. Test characters are encouraged, but leave your treasured heroes safely in their secret headquarters until the system is ready for release.
What We Need You to Test
Please begin with the system’s most common functions before exploring unusual combinations and edge cases:
- Create character archetypes and variations.
- Recreate a favorite character as a test.
- Build powers by combining effects and modifiers.
- Test power packages, arrays, variables, and other power containers.
- Use the Hero Point Manager.
- Use the Extra Effort Manager.
- Perform actions outside combat.
- Test action use and tracking through the Combat tab.
- Make Damage and Affliction attacks.
- Test area-effect Damage and Affliction attacks.
- Drag and drop Minions and Sidekicks.
Reports will be prioritized according to their impact on normal system operation and the complexity of resolving them. Issues affecting common activities and many users will generally be addressed before rare edge cases.
Suggestions are both welcome and encouraged. We all share the same goal: making the Official Mutants & Masterminds System for Foundry VTT as useful, reliable, and enjoyable as possible.
Thank you again for joining us. Now let’s break a few things—so they work properly when the system is released!
Please reach out to me via email at [email protected] if you would like to report issues but do not wish to join the Discord server.
Please reach out to me via email at [email protected] if you would like to report issues but do not wish to join the Discord server.
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