How to Pass Idle Fortress Tower Defense World 3

0:00 Starting Stats
01:25 First 20 Rounds
05:31 Add Damage
06:30 Add Health
10:57 Satellite and Missile
13:15 Revival Use
The minimum required stats to pass the world 3 is 193K Damage, 291K in Health, 9.65 in Attack Speed.
In this video, I'm showing you how did I get those stats without paying for anything. There are a couple of things that matter. You need to make sure you use your research lab (see what you need) in the most efficient way, as well as hoping for the best cards to draw.
These stats are literally the bare minimum. If you have a higher attack speed, you'll probably need less damage, but it has no impact on your required health. You need enough health to pass level 47 so that you can use your revival at 50. Knock back should be maxed (see the video) as well.