I'm making a zombie survival game, and I can't figure out how to make enemies. I want to have a spawner that spawns a zombie every 15 seconds, and I want the zombies to go towards the player until it either dies or kills the player. Also I need help with health. Please make it a javascript or C#.
No.
Spend 5 good minutes searching Google and you should find everything you need. Some keywords to keep in mind ("unity", "spawn", "health").
I find your lack of adequate searching disturbing.