World of Warcraft Guides, Lore, Addons & News – Noob to Boss From Azeroth's Newbie to Champion – World of Warcraft Guides
Cataclysm Classic reworks the original Azeroth zones from the ground up and adds two new races, Worgen and Goblin, each with their own starting experience. Like the Classic expansions before it, Cataclysm installs as a version switch inside the existing Classic client rather than a fresh download. Here’s the full setup.
What You’ll Need Before You Start
- A Battle.net account with an active WoW subscription or game time.
- Around 40-50GB of free drive space.
- The Battle.net app installed and up to date.
- A check of the official WoW system requirements page if it’s been a while.
Step 1: Set Up Battle.net
New players should register at the Battle.net account sign-up page and grab the Battle.net app before doing anything else. Returning players can log straight into their existing account.
Step 2: Install the Cataclysm Classic Client
- Open the Battle.net app and click the Games tab.
- Select WoW Classic from your game list.
- Use the version dropdown near the Play button to switch to Cataclysm Classic.
- Click Install and let the client patch or download.
If you already have a previous Classic version installed, this patches your existing files forward instead of downloading a full new client.
Step 3: Try Worgen or Goblin
Cataclysm’s two new races each get a dedicated starting zone: Worgen begin in Gilneas for the Alliance, while Goblin start on the Lost Isles for the Horde. Both starting experiences are self-contained and worth playing through even if you’re not planning to main either race.
Step 4: First Launch Checklist
- Character carryover: Existing characters move forward automatically once you switch to the Cataclysm client.
- Addons: Cataclysm Classic uses its own separate AddOns folder, so anything from a previous Classic version needs to be reinstalled here.
- Zone changes: Cataclysm reworks most of the original Azeroth leveling zones, so even veteran characters will find quest hubs and flight paths have moved around compared to vanilla or TBC.
Playing on Mac or Linux?
The install flow above is the same across platforms, though the base Battle.net setup differs slightly:
Want a Different Version of WoW?
Cataclysm is one stop on a much longer timeline. Here’s the rest of the lineup:
- How to Download & Install World of Warcraft (2026) — Retail
- How to Download & Install WoW Classic (2026 Guide)
- How to Download & Install WoW TBC Classic
- How to Download & Install WoW WotLK Classic
- How to Download & Install WoW MoP Classic
- How to Download & Install WoW Season of Discovery
- How to Download & Install WoW Hardcore Classic
Or browse the full WoW Download & Install Guides hub to compare every version at once.
Troubleshooting Common Install Issues
The most common Cataclysm Classic issue is the version dropdown reverting to an older Classic client after a patch, which sends you into the wrong version by mistake — check it before clicking Play each session. For login or patching problems beyond that, the official WoW support page covers known fixes, and the official WoW website has current server status.
