FantasySynth - GrooveBox

66KS
Released Mar 25, 2026by Cameron Thomas4 user reviews(100% of 4 Steam reviews)

FantasySynth is a Groovebox Synth that's Fully Controllable by Midi, QWERTY keys, or Gamepad. Easy to use and customize with a 5 Track Pattern based Arranger and Looper for composing entire Masterpieces

Offers

What are keyshops?

Official stores

Official stores with direct support.

Steam
SteamOfficial
updated

About FantasySynth - GrooveBox

Gamepad Supported Note Editing!

No more dragging and dropping notes with your mouse! FantasySynth is fully controllable by whatever controller you game with! Made to make music feel like a video game while still being an ultra powerful sound design Workstation

Key Features

Steam Cloud Save

Steam Workshop

Plug and Play Midi

✔ Per Device CC Bindings

Piano Roll-less Note Editor!

✔ Gives Midi controllers the power of Hardware

✔ Create Presets and Arrange with Just a Gamepad

Realtime Multitrack Arranger

✔ Entire Projects are only kBs!

✔ Import Animated Backgrounds

✔ Awesome on Steam Deck

✔ Play and Record on QWERTY keyboard

BLE Midi on SteamOS

Custom Color Themes

Aftertouch

Specs

Each Track has its own Polyphonic FM Based Synth Engine with its own Pattern Library to easily record, arrange, and loop entire Songs in any genre.

4 Operator, 21 FM Algorithms, 9 waveforms, 2 LFOs and filters per Track, 2 ADSRs per Operator, and Various FX. Real time sequencer and Looper with a Pattern based workflow

Drum kits are made using an FM Preset Per Key! Create your own Sound!

Midi Bindings save per device making setup a onetime thing! can control everything by midi, turning them into complete Grooveboxes

I made FantasySynth because making music for my games was very very very hard. DAWs felt like an uninspiring desk job and hardware was too limiting and unaffordable. In my almost 2 years of making FantasySynth and 7 years of Game Dev, I am just now starting to have fun with recording music and only have a fraction of the musical skills a lot of you have had for many years. I beg of you, plz make some ultra cool songs to show off what FantasySynth can do. 

Game details

FantasySynth - GrooveBox price history

Lowest tracked price: £11.00 (Jul 21, 2026) · current best: £13.75.

FantasySynth - GrooveBox reviews

100% positive reviews all-time.

FantasySynth - GrooveBox — frequently asked questions

Where can I buy FantasySynth - GrooveBox at the cheapest price?

Right now the cheapest offer for FantasySynth - GrooveBox is £13.75 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price FantasySynth - GrooveBox has ever been?

The lowest price KingsPrice has tracked for FantasySynth - GrooveBox is £11.00 (recorded on Jul 21, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How can I get FantasySynth - GrooveBox at a discount?

Create a free price alert on this page and KingsPrice will email you when FantasySynth - GrooveBox drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

Minimum:
  • OS *: Windows 7+
  • Processor: Dual Core 2.4 GHz
  • Memory: 4 GB RAM
  • Graphics: 1GB VRAM / DirectX 10+ support
  • Storage: 500 MB available space

Recommended

Recommended:
  • Memory: 4 GB RAM
  • DirectX: Version 11
  • Additional Notes: When using battery powered devices. I strongly recommend using an externally powered midi controller

Similar at tracked lows

Games like FantasySynth - GrooveBox (7)