BuildABaseRNG
Official feature · Checked July 15, 2026

Build a base RNG Relics & Crafting Guide

Bosses, custom attacks, relic rewards, and crafting are confirmed by the official game description. Exact boss drops, relic names, recipes, quantities, and odds are not public.

Quick answer

Fight bosses, inspect the reward, then verify the recipe in game

The confirmed loop is simple: bosses provide relics, and relics are used for crafting. Anything more specific needs a visible current reward or recipe screen.

The Bosses Update description says bosses use powerful custom attacks and reward relics for crafting new powerful objects. This establishes the purpose of the system, but it does not establish a drop table. Treat any exact percentage, recipe, or “best relic” claim as unconfirmed unless it matches the current game UI.

Confirmed loop

A safe relic-to-crafting walkthrough

1 · Prepare

Build for the boss test

Use at least two coverage layers and more than one visual defense role. Run a baseline before replacing several pieces at once.

2 · Observe

Watch the first failure point

Custom boss attacks are confirmed, but their mechanics are not documented here. Use what happens on screen to choose one layout change.

3 · Inspect

Read the reward name exactly

Capture the spelling, quantity, and icon shown by the game. Do not assume every boss shares the same drop pool.

4 · Craft carefully

Follow the visible recipe

Check required quantities and the output before confirming. Save unfamiliar relics while public recipe data remains incomplete.

Known

What the creator confirms

  • Bosses are a current update feature.
  • Bosses have custom attacks.
  • Bosses provide relics.
  • Relics craft new powerful objects.
Still unknown

Do not invent these details

  • Boss names, schedules, and stat thresholds
  • Relic names and per-boss drop tables
  • Drop chances, pity, multipliers, and caps
  • Recipes, quantities, outputs, and crafting costs
FAQ

Relic and crafting questions

How do relics work in Build a base RNG?

The official game description says bosses have custom attacks and provide relics used to craft powerful new objects. It does not publish relic names, exact drops, recipes, quantities, or crafting odds.

Which bosses drop relics?

Specific boss names and drop tables have not been confirmed in the public sources checked. Use the Boss Waves event and in-game reward screens for current information.

What can I craft with relics?

The creator confirms that relics craft new powerful objects, but a complete recipe or crafted-item list is not public. Avoid guides that give uncited exact recipes.

Should I save every relic?

Until recipes and costs are visible, keeping unfamiliar relics is the conservative choice. Do not destroy or trade an item based only on a guessed value table.

Prepare for Boss WavesRead the current updateReview defense itemsSee research references