Economy first, always
A steady income clears walls that brute force cannot. Build it before the luxury so the run never stalls on a shortage you could have prevented.
Match the tool
Right drill, right crew, right deck. The tool you use most deserves the first upgrade you can afford to make, because it touches every encounter.
Watch the tell
Every game telegraphs. Read it once and the same fight becomes routine instead of a wall you keep running into with no plan to break through.
Do not hold 35 characters and 10 bosses in your head. The character database and boss database are the plan you should lean on.
Bank the surplus
Keep a reserve of bots and coin for the moment the wave spikes. A buffer turns a crisis into a slow afternoon instead of a total collapse.
Learn the one trick
Each game has a signature habit worth mastering. A digger controls depth, a deck builder orders cards, and a builder protects the economy above all else.
Revisit old games
A trick learned in one entry often helps the next. The series rewards players who carry habits forward instead of relearning the same lesson twice.
Start small, then scale
Pick one habit and make it automatic before adding another. A single reliable routine beats a long list you forget the moment the wave lands.