: Build towers adjacent to houses to generate gold each wave.
: You can customize each tower's targeting logic (e.g., focus on enemies with the "Most Armor" or "Fastest" speed). This is crucial for towers like the Shredder (effective against armor) or the Tesla Coil (effective against shields). Resource Management :
: These are one-time upgrades or new towers unlocked during a run. Avoid picking every new tower, as "polluting" your deck makes it harder to get specific upgrades for your core defense.