Role & Function

Tier 3 upgrade granting the full Orc army tech tree.

Ladder Tip

Fortress is only necessary for Tauren or Spirit Walker-based compositions. Most Orc games are decided well before Tier 3 — only commit if your economy is ahead.

Trains & Upgrades

• ⬆Unlocks Tauren
• ⬆Unlocks Spirit Walkers
• ⬆Unlocks Tauren Totem