Bomb Farm World Progression Guide

Bomb Farm worlds and difficulty progression

Each difficulty contains five worlds. Clearing the final stage of World 5 unlocks the next difficulty. The order is Easy, Normal, Hard, Very Hard, then Inferno.

The official Inferno achievement confirms Stage 600 as the end of the full campaign.

Use the map’s three signals

World column: shows available worlds and the next campaign destination.
Flag: marks the stage your squad is fighting now.
Difficulty column: shows the current loop and locked future difficulties.

Timed gates

A timed gate consumes one key for the selected difficulty when entered. The room must be cleared before the timer expires. The official “Beat the Clock” achievement confirms the first gate at Stage 10.

Do not test a weak lineup with your last key. Check active heroes, energy, equipment, and any timed-stage effects before entry. Against the Clock exists specifically for timed stages.

Farming versus advancing

Later worlds offer better stages to farm. Use the stage panel to compare gold, XP, chest, gem, cage, stone, key, and time-related reward chances before choosing a farming stage.

Use a simple rule: farm when the next gate is unreliable; advance when the current field clears consistently and a key attempt is justified.

Difficulty checklist

Clear all five worlds on the current difficulty.
Use gate keys only with a prepared lineup.
Revisit equipment and skill paths when clear times become unreliable.
Complete World 5 to unlock the next difficulty.
Repeat through Inferno and Stage 600.

Open the world database for the full visual map.