
FantasySynth is an FM based Groovebox 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
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked since Jul 7, 2026.
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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
✔ 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
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. 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.