FIELD ROUTE / FIRST SESSION

Your first 15 minutes in Build a Base RNG

The goal is not a perfect roll. The goal is a repeatable test that tells you what the next roll, placement or upgrade must accomplish.

Open roll calculator
Official Build a Base RNG image showing the roll control and placeable defenses

ROUTE / 01–06

Build one controlled baseline

  1. Roll a usable set. Keep enough visibly different objects to cover more than one point instead of waiting for a perfect rarity.
  2. Start pressure early. Place one contributing defense where enemies first enter useful coverage.
  3. Add a middle layer. Give survivors another section where your current objects can keep working.
  4. Reserve cleanup. Do not stack every strong object at the opening; keep one useful final contribution.
  5. Run the whole test. Watch the first point where enemies stop taking enough pressure.
  6. Change one variable. Move, replace or upgrade one role, then replay the same baseline.

DECISION RULE

Name the failure before spending.

  • Leak at the opening → test front coverage.
  • Survivors cross the middle → test sustained middle pressure.
  • Only a few reach the core → test cleanup coverage.
  • Groups overwhelm one point → test a visibly different crowd-control role.
  • Waves clear but the boss lives → hold the layout and test boss focus.

OFFLINE CHECK

Leave a base you have actually tested.

The official description confirms that your base fights offline. Before leaving, run one final baseline, avoid an experimental rebuild, and keep coverage at the first known leak.

FAQ

Beginner questions

What should I do first in Build a Base RNG?

Roll a small usable set, place a front contribution, add middle pressure and keep one cleanup position before running a baseline wave.

Should I keep rolling until I get a rare object?

A rare-looking result only helps if it fills the role your current layout is missing. Establish a working base before chasing one perfect pull.

How should I prepare for offline fighting?

Leave a tested layout active. Run one baseline immediately before leaving and fix the first leak rather than rebuilding every section.