▰ Prism
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Getting started

Unzip, launch, import your maps and play your first song.

Prism is a vertical-scrolling rhythm game for Windows 10 and 11 (64-bit). Nothing to install: you unzip a folder and run prism.exe.

Song select: the map list and the difficulty analysis of the selected chart
Song select with difficulty analysis

What you need

  • Windows 10 or 11, 64-bit.
  • The Microsoft Edge WebView2 Runtime, which draws the menus. It is already on Windows 11 and on up-to-date Windows 10. If it is missing, Prism says so in a message window and gives the download address, then closes: install it and start Prism again.
  • A GPU the game can draw with (it renders with wgpu).

Install

  1. Download the zip from the Download page. This is only for the first install: later versions install from inside the game (see Updates and channels).
  2. Unzip it where you like, but not in "Program Files": the game needs to write to its own folder to update itself.
  3. Double-click prism.exe. Keep the mods, skins and themes folders next to it.

Add your maps

  1. Press the + button at the top of the map list and choose a folder of osu!mania or Etterna maps. Import goes through the subfolders. (The same thing is in Settings → Library → map folders.)
  2. The list is then read from a local database, so it does not rescan on every start. Your files stay where they are.
  3. Difficulty ratings are calculated in the background after the import.

More in Your library.

Play your first song

Click a map, then Play (or press Enter). Esc opens the menu: Settings, Skins, Mods and more. Default keys are in Playing.

Where your data lives

Your library, replays, settings and your own skins, mods and themes are in %LOCALAPPDATA%\Prism\PrismNG\data. Delete that folder to start again from zero, settings included. Nothing is written anywhere else.