Sunken & Spore D!!!

6P Walling Drain Defense, Space 128x128 - by Various Authors in early 2000s
Evenly divide between ground and air defenses to prevent mixed enemies from ever leaving your area.
SunkNSpore Def {FiNaL}.scx
Download StarCraft Map: Sunken and Spore Defense, Sunk & Spore, Sunks n Spores
Levels: 16 // Start: Manual // Heroes: 16 + 4 bonus // Walling: Partial // Defeat: >5 enemies reach center
Tip: the end is just behind each player's area, so either make sure no one leaks or protect the center