Leveling for Horde is simple and in some ways kind of dull affair if you like seeing a lot of different scenery. Each race starts in its starting zone and has little choice of where to go after that: you’re going to end up in the Barrens (10-33) unless you’re Undead, in which case you could most easily go to Silverpine Forest (10-20) instead and then head to the Barrens.
World of Warcraft Classic: Best Horde Leveling Zones
This is both a blessing and a curse. It makes things easy when planning your character’s leveling route, for sure. You start at the start and move to the Barrens. If you get bored, dip into Silverpine for a while and then dip back to the Barrens.
After level 12 or so, you want to also venture into Stonetalon Mountains (14-30). This gives you three options of overlapping levels to skip between and hopefully keep things a little fresher instead of just orange desert all the time.
An interesting thing to note is that the Barrens and Stonetalon Mountains are sorts of technically contested zones; there are Alliance or Neutral quests in all both areas. Worry not, however, when leveling your low-level character. The chances of seeing a member of the opposing faction in one of these areas are slim to none regardless of that technicality.
While the sparse number of Horde controlled areas may sound like a bit of a bummer, worry not: what the Horde lacks in several territories they make up for in several dungeons.
The Alliance has access to the Deadmines and the Stockades, and that’s pretty much it for low-level dungeons unless they wish to invade Horde territory for sweet loot.
On the other hand, the Horde is practically swimming with low-level dungeons by comparison: Shadowfang Keep, Ragefire Chasm (in Orgrimmar), and Wailing Caverns can be accessed in the mid to late teens by Horde players, and all give decent loot and experience.
This means what you lack in a variety of areas you make up for in a variety of dungeons, which you can use to fill out leveling and gear any time you get tired of questing.
Eventually, you’ll out level Horde controlled areas and need to venture forth into Contested Zones, which is a whole new ballgame.