• Download Intellij Idea Community Edition from https://www.jetbrains.com/idea/download/
• Install Intellji by double clicking the downloaded file and following the instructions
• Open Intellij
• Create New Project
• New Project SDK
• Navigate to the latest version of Java.  On a Mac that is currently /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk
• next
• Group Id: com.skills421.examples.drools
• ArtifactId: WritingRules
• Next
• Project Name: WritingRules

Default Pom looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.skills421.examples.drools</groupId>
<artifactId>WritingRules</artifactId>
<version>1.0-SNAPSHOT</version>

</project>

Add Drools Dependencies