
FantasySynth - GrooveBox
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?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
Game details
Age ratings
Game modes
Languages
Features
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?
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System requirements
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
- Memory: 4 GB RAM
- DirectX: Version 11
- Additional Notes: When using battery powered devices. I strongly recommend using an externally powered midi controller











