In this Tower Defence game, creeps move on multiple paths, and have 4 different spawn portals! So, you must be able to build your towers strategically to defend your factories. As the game progresses, many new towers and enemies are unlocked. You can always come back to continue your game, as the game is automatically saved every wave. Play Industrial TD 2 and other flash games at CafeCafeGames.com - We have the best free online games for you.