Simplify the following text for a Grade 8 native English-speaking person.
Original: The series is made up of four core games : Warcraft : Orcs & Humans , Warcraft II : Tides of Darkness , Warcraft III : Reign of Chaos and its expansion pack , The Frozen Throne , and World of Warcraft .
Simplified: The different games from the series are Warcraft : Orcs and Humans , Warcraft 2 : Battle.net edition ( with an expansion pack ) and Warcraft 3 and its expansion pack , The Frozen Throne .