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Boom Witch Swamp
World 6 · Keep on Mining! - Worlds

A murky, magic-infused swamp in Keep on Mining Worlds. Poisonous mushrooms continuously spawn and release AoE gas clouds that deal persistent low damage to rocks. The Boom Witch herself occasionally casts spells amplifying your bomb radius.

🔓 UNLOCK

Late-game after Up in the Air

⚡ ENVIRONMENT

Poisonous mushrooms continuously spawn across the map and release poisonous gas ...

💎 RESOURCES

Swamp Mud · Witch Crystal · Rodonate Ore · Toxic Gem

🌡️ Environmental Effect

Poisonous mushrooms continuously spawn across the map and release poisonous gas dealing low AoE damage to rocks passively. Mental Spawn talent cards have increased effectiveness in this world.

💡 Strategy Tips for Boom Witch Swamp

Mental Spawn talent cards are the best pick for this world. The mushroom gas ticks supplement your active mining significantly. Upgrade Artifact Spawn Chance before entering for maximum artifact finds.

⛏️ Resources in Boom Witch Swamp

These ore types drop from rocks in Boom Witch Swamp. Some are required for pickaxe crafting.

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Swamp Mud
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Witch Crystal
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Rodonate Ore
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Toxic Gem

🃏 Best Talent Cards for Boom Witch Swamp

Choosing the right talent cards for this world's environmental mechanic dramatically increases your session efficiency.

📈
Recommended

Steady Gains — universal economic card, strong in all worlds

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Recommended

Giga Explosion — AoE clearing effective in any environment

See the full Talent Cards guide for the complete per-world tier list.

← Previous World
☁️ Up in the Air
Next World →
🌋 Erupting Volcano

🔗 Related Guides

🌍 All Worlds 🌿 Skill Tree ⛏️ Pickaxes 🃏 Talent Cards 🏺 Artifacts 🏆 Achievements

❓ Frequently Asked Questions

What do mushroom gas clouds do in Boom Witch Swamp?
Mushroom gas clouds spawn continuously across the swamp and release poisonous gas that deals persistent low AoE damage to nearby rocks. This passive damage supplements your active mining even during idle moments.
How does the Boom Witch herself appear in Keep on Mining Worlds?
The Boom Witch is a background character who occasionally casts spells that amplify your bomb radius for a short duration. This synergizes with the Giga Explosion talent card and Explosion Anomaly skill tree upgrades.
Is Mental Spawn good in Boom Witch Swamp?
Yes — Mental Spawn is S-tier in Boom Witch Swamp specifically. It increases all anomaly and special event spawn rates by 25%, directly amplifying the mushroom gas frequency that defines this world's passive damage output.