Build a base RNG Boss Roster
Full boss roster for Build a base RNG after the BOSSES UPDATE: entry, mid, and end bosses, custom attacks, Relic rewards, and unlock order.
BOSSES UPDATE Roster
The July 2026 BOSSES UPDATE added boss encounters with custom attacks — telegraphed patterns distinct from standard zombie waves. Each boss ties to Relic pools used in crafting. Slungpy Games pushed a follow-up balance pass on July 14, 2026 (Roblox API) tuning HP and reward pacing.
Read the full patch on Bosses Update page and July 14 balance notes.
Boss Tier Structure
| Tier | Role | Relic Focus | When to Attempt |
|---|---|---|---|
| Entry Boss | Pattern tutorial | Utility Relics | After stable zombie clears |
| Mid Boss | Add spawns + hazards | Hybrid offense Relics | B-tier defenses, income buffer |
| End Boss | Enrage phases | Core / best-in-slot Relics | S-tier layout, craft plan ready |
Specific boss names are added as the community confirms in-game labels — contribute via community tracker.
Custom Attack Patterns
Boss attacks differ from zombies: ground telegraphs, phase shifts, and arena hazards punish greedy layouts. Learn one boss at a time — fight strategies and beat bosses guide.
Co-op servers hold up to five players; boss HP may scale with headcount. Solo first for pattern learning.
Recommended Farm Route
- Entry boss until first utility Relic craft unlocks.
- Mid boss for offense Relics if zombie leaks persist.
- End boss when income and defenses support retry costs.
Cross-check drops on relic drops page before grinding the wrong encounter.