Harp is a narrative soundboard designed for roleplaying games. Trigger music, ambiences, and sound effects at the perfect moment while keeping the game flowing naturally.

The goal is simple. Offer immersive atmospheres through a smooth and practical tool that creates a soundscape in service of your story.

Along with the software itself, Harp comes with its own sound bank, designed in collaboration with Studio Anatole, a French Studio that worked on projects such as Black Mirror (2011–), Secret Level (2024–) or Clair Obscur: Expedition 33 (2025). Learn more about our collaboration here.

Harp comes with music, atmospheric tracks, and one-shot effects.

We use randomization to avoid the feeling of repetition that’s typical with loops. Our music and atmospheric tracks change constantly, using complex algorithms and layering to keep your players immersed. One-shot effects also come with multiple variants that can be selected randomly.

Here’s a video demonstrating one minute of the atmospheres you can create with Harp. Everything heard in it is automatic, and it would need no user input once started.

You can organize soundboards and sequences. In-game, you can quickly trigger tracks and sound effects with a single click, including from other software in the Suite, such as Tome.

It is possible to import your own sounds and play them alongside the ones created for Harp, offering a fully customizable experience.

You can prepare specific sound sequences ahead of your session in order to reduce your workload during play.

As an example, we are showing a complex sequence in the image below. It uses multiple sound effects, as well as commands that allow you to stop the currently playing music or atmospheric tracks, or replace them with new ones.

Here’s a video demonstrating a user using multiple sequences of sound effects to give more texture to a fighting scene, making every sword hit and spell feel heavy and impactful.

Warning: Intense soundscape including screams of pain

Thanks to our dynamic music, you can adjust the current soundtrack and its emotional tone to match the needs of your story.

All our music tracks come with multiple moods, allowing you to keep the music running throughout very different moments of the story.

Even within the same scene, a fight could become more desperate, or more victorious, depending on the results of the dice. With Harp, you can adapt your soundscape to reflect that.

Here’s an example of how setting the right move can really change the emotional weight of a scene. 

Warning: Intense and distressing soundscape

You can also import the music tracks you enjoy most into the software and play them normally.

Because we know that customizing everything is part of the fun of being a GM, we also included a way for you to customize music tracks. Of course, since most of you aren’t professional composers, we didn’t make a complex composing software.

Instead, we prepared a fun, gamified way to create your own music from pre-made bricks created by professionals: the Harmonium. So you can bring your own music to the table. Have fun!

Show just what is needed, when it matters. Scry is a shared space designed to support game masters and players before, during, and between sessions.

With Scry, every participant can take notes, share documents and visuals, and plan sessions while providing feedback. Everything is gathered in one place, without cluttering the table or scattering game materials.

This can fundamentally change the TTRPG experience, from a periodic structure to a continuous structure, where all participants can flesh out their roleplaying, interact with the story and exchange with one another between sessions in one, centralized space.

With Scry, the GM can share parts of their Lore world or Tome campaign with some or all players, keeping everything under their control.

Lie outright, or simply censor concepts. Send different information to different people, and more… the perfect toolkit to share exactly what you want, nothing more, nothing less.

The more complex the plot becomes, the richer the story grows and the more numerous the clues are. 

But it can also become harder to connect the different elements of the narrative.

With Scry, the players can easily organize everything they have written or received from other 

participants into a mind map, share their findings, and work together to make sense of the world, its rules, and its mysteries.

Comment, add private notes, link ideas together, keep a journal of how your character feels, share your ideas and roleplaying notes with other players or your GM, and make the experience between sessions better than ever before.

Roleplaying can be a balancing act between the needs of different players.

We believe that an effective feedback system can genuinely improve your sessions and ensure that everyone has a chance to be heard.

This can be especially helpful if some of your players find it difficult to express their needs out loud. Having a structured framework to share concerns can go a long way toward helping them feel acknowledged and taken seriously when they express their thought and feelings.

We wanted to simplify the process, which is why we designed a system that helps everyone stay coordinated. Players can vote on different time slots for the next session, making it much easier to keep a campaign going over time.

This helps reduce the risk of campaigns being abandoned and simplifies a major part of roleplaying games, because getting everyone around the same table or connected on an online platform can be just as challenging as preparing the story itself.

Everyone can participate in their own way.

Whether you’re just curious, a serious enthusiast or a huge collector, join or rediscover the Amsel Suite: 

To thank the people who reserved for the campaign before it launched, please enjoy an exclusive pack of whimsical and amusing SFX for Harp.

This campaign is a Cross-Collab Project for Modi Case: The 3D Printable Case Building System. If you back our two projects, we will offer you an exclusive sound pack for Harp, appropriate for robotic and mechanical themes. Furthermore, the Modi Team will offer a 3D-printable laptop stand.

Delivery is fully digital and provided at no additional cost. If you are located within the European Union or Canada, additional charges related to applicable taxes (VAT) will be applied after the campaign, during the survey phase. The applicable rate depends on your local jurisdiction. 

As a reward for making it this far into the page, please enjoy two more demos of the Harp soundscapes.