The v0.4 "Big Update" introduced significant content additions and mechanical refinements:
: Over 40 unique upgrades, including Mines Line (dropping mines upon death) and Anti-Explosions protection. Northend Tower Defense Free Download (v0.4)
: Introduced an Armor and Armor Penetration system to deepen tactical play. New Units : The v0
: Added the Naval Base map and a new Captain enemy type. Northend Tower Defense Free Download (v0.4)