Free software, made for fun.
7 games, science toys and apps for Windows, with new ones on the way. All free, and most of them open source.
Featured
Empire
Real-time interstellar war, a recreation of the 1973 PLATO classic.
Get it free →
What's new
- Empire v1.2.0 Real-time interstellar war, a recreation of the 1973 PLATO classic.
- Alex Dash v1.2.0 Dash to the exit through a field full of other Alexes, without ending up headfirst in a crate.
- EM Field Visualizer v1.1.0 See the electric and magnetic fields around moving charges, from any frame, up to near light speed.
Browse everything
-
GamesNEWEmpireReal-time interstellar war, a recreation of the 1973 PLATO classic.
-
GamesNEWAlex DashDash to the exit through a field full of other Alexes, without ending up headfirst in a crate. -
Science toysNEWEM Field VisualizerSee the electric and magnetic fields around moving charges, from any frame, up to near light speed. -
Science toysNEWGravity CylindersNewton, special relativity and general relativity, side by side on three moving cylinders of mass. -
Science toysNEWStar Map 3DFly around every catalogued star and known exoplanet system within 300 light years. -
AppsNEWVocal CoachA singing trainer that listens and shows you, in real time, whether you're on the note. -
AppsNEWJournalA private daily journal, encrypted and unlocked with Windows Hello.
Nothing matches that. Try another word or pick "All".
About QAPOW
QAPOW is where John Apolloni puts the things he builds for fun. Everything here is free, and the code for most of it is on GitHub.
First time running one?
Windows may say "Windows protected your PC" because the programs aren't signed yet. Click More info, then Run anyway.