Survival Defense:Zombie

It's a game that you can enjoy by investing some time and updating things step by step. If you have plenty of time, I recommend proceeding slowly and steadily.

In the early game, it's more important to strengthen your main units with high attack power rather than randomly placing many units. During the initial zombie horde, it's stable to place long-range dealers in the back and units that can block enemies in the front. If you try to level up various types of units evenly, you'll easily run out of resources. So, in the early stages, it's better to focus your enhancement resources on a few core dealers. Especially in sections where zombies rush in all at once, units with area-of-effect attacks are much more efficient than single-target attacks. If you're stuck on a stage, don't just increase your attack power; try changing your unit placement first. Even the same unit can have different attack efficiency depending on its position. For stages with bosses, it's good to have both firepower and survivability to quickly clear out mobs while consistently dealing damage to the boss. Ultimately, the key isn't just having many strong units, but efficiently placing your current units, focusing resources where needed, and consistently growing them.