Deus Core
Software that does
the hard part for you.
Deus Core is a studio building small, focused apps that make everyday things easier — music tools, games, and handy utilities. Simple to buy, simple to use, one download each.
See our productsProducts
What we make
Each one is a single app you download and own — no installers, no clutter.
GN Pianist
Windows appTurns piano videos and MIDI files into playable sheets, then plays them for you on any QWERTY virtual piano — Roblox, virtualpiano.net, and more.
View GN Pianist →✦
More coming
In the worksNew Deus Core tools are in development. Check back soon.
Coming soonAbout
Deus Core
Deus Core is a one-person studio turning ideas into focused, affordable apps that each do one thing well. It started with GN Pianist — and there's plenty more on the way, from games to everyday tools.