Mirillis Action! is a computer/game recorder. It is not very popular and it is most used by gamers. You can see an example here.

Advantages and Disadvantages


  • Doesn't use much of CPU.
  • Good quality.
  • Low file size. (Excluding if you record a lot of time)


  • Difficult to use with Piano From Above. (Action must be opened after PFA. Also, while Action is opened, PFA's window can not be moved or scaled)