Compatibility:

Helvica is compatible with any planet pack that does not replace the existing stock system, and that does not add a planet between the orbits of Duna and Dres.

Installation Instructions:

1. Install Kopernicus and its dependencies if you haven't already. (Kopernicus Continued for 1.9.1 or Kopernicus BE Build 1101 for 1.10.1.)

2. Extract the contents of Helvica_(vX.X).zip\GameData to your KSP GameData folder.

3. Enjoy!