The Economy Habit That Beats Every Tower Upgrade
Most losing runs aren't a tower problem at all - they're an economy problem that shows up three or four waves later. Four fixes below.
Save before you upgrade
Dumping gold into one tower immediately often leaves nothing for the gap that appears two waves later. A small reserve avoids that gap entirely.
Cheap towers early, strong towers late
Early waves rarely need a maxed-out tower. Spreading cheap coverage first and upgrading once income grows stretches gold much further.
Don't ignore support towers
Slow or weaken effects look unimpressive alone but multiply the value of every damage tower nearby - skipping them usually costs more than it saves.
Plan two waves ahead, not one
Reacting to the current wave alone means always being one step behind. Building for what's coming next keeps the defense from ever fully buckling.
None of this needs a spreadsheet to track - it works the same with rough mental math, just with a bit more planning than reacting wave by wave.