Arcade is delivered in multiple file formats. These include plug-in files, and the standalone application file specific to your operating system.
Plug-In Formats:
VST: VST stands for Virtual Studio Technology. It's a standard plug-in format available on both MacOS and Windows.
VST3: An improvement over VST, VST3 has a distinct advantage in that it only uses processing power when an audio signal is present. This saves a considerable amount of CPU capacity and we highly recommend using VST3 in place of VST whenever possible.
AU: Audio Units are a Mac-only plug-in format, which is the Apple-equivalent of VST. While MacOS supports VST/VST3, Windows does not support AU.
AAX: Avid Audio eXtension is a filetype specific to Avid's Pro Tools DAW. This is the only plug-in format supported in Pro Tools, but it is supported on both MacOS and Windows
Standalone Applications
In addition to the filetypes mentioned above, Arcade is also delivered as a standalone application which can be opened without use of a DAW.
MacOS: Arcade.app
Windows: Arcade.exe