Unearth every Malignant Tunnel in Diablo 4 Season 1 with pinpoint accuracy – from hidden paths to elite encounters, this guide and interactive map reveal where the corruption festers and the best routes to conquer it.
In this Diablo 4 guide, we’ll show you where to find all six Malignant Tunnels, which we’ve also added to our interactive map.
Fissure of Malice
The Fissure of Malice sits amid fractured stone in Kehjistan’s sun-baked expanses, where Malignant Hearts pulse with dark energy. Players spot its jagged entrance near the Tomb of the Saints waypoint, flanked by crumbling ruins and patrolled by burrowing foes. Clear the surrounding packs of blood mages and schemers before dropping inside to face the tunnel’s twisting corridors and boss guardian.
The Fissure of Malice is a Malignant Tunnel in The Pallid Glade region of the Fractured Peaks. You can find it on the left side of the Fractured Peaks region map.
The Boiling Wound
The Boiling Wound sits amid Fractured Peaks’ steaming geysers, where scalding vapors rise from cracked earth. Malignant forces spawn relentlessly here, demanding quick clears to claim Hearts and loot. Pin it on your map at coordinates [X: 15, Y: 50] for repeated runs through Season 1.
The Boiling Wound is a Malignant Tunnel in the Frigid Expanse region of the Fractured Peaks. You can find it on the right side of the Fractured Peaks region map.
Dindai Hollow
Dindai Hollow lies in Scosglen and features corrupted enemies guarding Malignant packs that can drop valuable hearts. Players will encounter tight corridors filled with ranged threats, so clearing small groups before advancing helps maintain control. Completing this tunnel grants a good chance at collecting Caged Hearts useful for seasonal builds, making it a prime spot for farming during Season 1.
Dindai Hollow is a Malignant Tunnel in the Dindai Flats region of the Dry Steppes. You can find it on the left side of the Dry Steppes region map.
Ravening Pit
Ravening Pit is located in the dry cliffs of the Dry Steppes, offering one of the most challenging Malignant Tunnels to clear. This tunnel features waves of enemies that swarm from tight corridors, testing both defense and crowd control. Players will encounter powerful Malignant foes and Elite packs that drop valuable Caged Hearts, making it a high-risk, high-reward location for seasoned adventurers.
The Ravening Pit is a Malignant Tunnel in the Untamed Scarps region of the Dry Steppes. You can find it near the bottom-right corner of the Dry Steppes region map.
Den of the Blighted
Den of the Blighted is located in the Dobrev Taiga region of Fractured Peaks and features swarms of Malignant monsters that thrive in poisonous environments. Players can find numerous elite encounters here, making it an excellent spot for collecting Malignant Hearts and rare loot. The dark, disease-ridden tunnels require careful movement and strong poison resistance to survive the dense enemy packs within.
The Den of the Blighted is a Malignant Tunnel in the Dismal Foothills region of Hawezar. You can find it just to the left-of-center on the Hawezar region map.
Bedeviled Grotto
Bedeviled Grotto is located in Hawezar and features narrow, twisted paths filled with undead and corrupted wildlife. Players will encounter elite Malignant enemies that drop valuable hearts for seasonal crafting. Watch for ambushes in the lower chambers, where tight spaces make ranged combat difficult. Clearing this tunnel rewards useful drops and progress for seasonal objectives.
Which Malignant Tunnel is best for farming Malignant Hearts
Ravening Pit and Dindai Hollow stand out as the top Malignant Tunnels for farming Malignant Hearts in Diablo 4 Season 1.
Top Picks
These Dry Steppes tunnels excel due to high mob density, short layouts, and guaranteed Malignant Elites right at the start that drop Hearts reliably. Players can quickly clear to the completion notice, exit to reset, and repeat for efficient XP and Heart gains-often netting 3+ Hearts per fast run.
Strong Alternative
The Boiling Wound in Fractured Peaks ranks highly for its ultra-short path and Outgrowth focus, ideal if using many Invokers to target specific Hearts like Devious ones. Its proximity to Kyovashad waypoint allows easy salvaging loops without wasting time.
Quick Tips
Use Brutal Invokers in Dry Steppes tunnels for better elite spawns; skip Heart captures if prioritizing pure speed, though salvaging extras aids Ichor crafting long-term. All tunnels yield random Heart types despite their Invoker affinity.
How to reset Ravening Pit and Dindai Hollow for efficient farming
Ravening Pit and Dindai Hollow, both in Dry Steppes, reset efficiently for solo Malignant Heart farming through a quick town portal loop that bypasses long cooldowns.
Solo Reset Method
Clear the tunnel fully until the completion notice appears, then press T to open a town portal and exit to Kyovashad (or nearest waypoint like Jirandai). Immediately re-enter the dungeon entrance-the instance resets instantly upon re-entry, often in under 10 seconds total. This works because Malignant Tunnels are compact normal dungeons without keys, allowing rapid repeats without logout or party tricks.
Advanced Speed Trick
For even faster cycles, start a low-tier Nightmare Dungeon first, kill one enemy, town portal out, then farm your tunnel. After tunnel completion, town portal again and rejoin the Nightmare sigil-it forces an instant tunnel reset on re-entry while letting you salvage Hearts in town mid-loop. Repeat without closing the Nightmare portal for near-permanent uptime.
Farming Optimization
Use Brutal Invokers for elite-heavy runs; skip optional Outgrowths if pure Hearts are the goal, as elites drop them reliably from the start. Expect 3+ Hearts per 2-minute cycle, scaling with speed and build power.
