There are currently 4 biomes available in DRG Survivor: Crystalline Caverns, Magma Core, Hollow Boughs, and Salt Pits. Each biome has 5 different hazard levels that must be unlocked with biome points. These can be earned by completing the unique challenges that are shown when choosing the hazard level.
Crystalline Caverns
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Although many greenbeards begin their career here, don't be fooled by the beauty of this place. The Jewel of Hoxxes is as dangerous as it is breathtaking.
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| — Magma Core description
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The Crystalline Caverns are unlocked by default. This is a standard biome with purple mineable terrain and purple crystalline structures.
Enemies are at the default difficulty.
Crystalline Caverns
| Hazard Level |
Biome Points Needed |
Biome Goals
|
| Hazard 1 |
By default |
 Complete the dive- Upgrade Deepcore GK2 to level 12
- Collect 200 Gold
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| Hazard 2 |
5 |
- Complete the dive
- Equip 4 [KINETIC] weapons
- Upgrade "Lead Storm" Powered Minigun to level 18
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| Hazard 3 |
15 |
- Complete the dive
- Collect 30 Red Sugar
- Upgrade "Warthog" Auto 210 to level 21
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| Hazard 4 |
25 |
- Complete the dive
- Mine 2000 blocks of Rock and Stone
- Reach 55 with Recon Scout
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| Hazard 5 |
35 |
- Complete the dive
- Reach 60 with the Strongarmed Driller
- Equip 4 [ELECTRIC] weapons
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Magma Core
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When you're this close to the core of Hoxxes, angry glyphids are the least of your worries. Between the hot rocks, exploding plants, and magma flows, you'll be lucky to extract without a singed beard!
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| — Magma Core description
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Magma Core is a step up in difficulty from the Crystalline Caverns. It features dark rocky mineable terrain with molten lava veins both in the terrain and on the ground. These veins will deal damage to miners attempting to mine the terrain or walking over spots on the ground.
Enemies have 5% more HP and deal 5% more damage.
Magma Core
| Hazard Level |
Biome Points Needed |
Biome Goals
|
| Hazard 1 |
2 |
- Complete the dive
- Collect 20 Red Sugar
- Reach 25 with the Gunner
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| Hazard 2 |
9 |
- Complete the dive
- Collect 150 Nitra
- Upgrade LMG Gun Platform to level 18
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| Hazard 3 |
19 |
- Complete the dive
- Mine 1000 blocks of Rock and Stone
- Upgrade Voltaic Stun Sweeper to level 21
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| Hazard 4 |
29 |
- Complete the dive
- Collect 275 Nitra
- Upgrade Incendiary Grenade to level 25
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| Hazard 5 |
39 |
- Complete the dive
- Reach 60 with the Demolitionist Engineer
- Equip 4 [FIRE] weapons
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Hollow Bough
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A strange maze of regrowing vines and thorns that is a challenge to navigate for even the most experienced graybeards. If you want to make it to extraction you'd best keep digging.
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| — Magma Core description
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The Hollow Bough introduces another new mechanic for a new challenge. It features green mineable terrain, thin brown vines, and thick red vines. The brown vines are regenerating vines, meaning they will reappear a short time after mining. This is important for the Hazard 1 challenge shown below. The thick red vines are unable to be mined or removed by any means and must be treated as voids in the ground.
Enemies have 10% more HP and deal 10% more damage.
Hollow Bough
| Hazard Level |
Biome Points Needed |
Biome Goals
|
| Hazard 1 |
4 |
- Complete the dive
- Mine 750 regenerating vines
- Reach 30 with the Engineer
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| Hazard 2 |
13 |
- Complete the dive
- Collect 100 Nitra
- Upgrade CRSPR Flamethrower to level 18
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| Hazard 3 |
23 |
- Complete the dive
- Collect 500 Gold
- Upgrade BRT7 Burst Fire Gun to level 21
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| Hazard 4 |
33 |
- Complete the dive
- Collect 550 Gold
- Upgrade Subata 120 to level 25
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| Hazard 5 |
43 |
- Complete the dive
- Reach 60 with the Juggernaut Gunner
- Equip 4 [ACID] weapons
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Salt Pits
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A lovely place where mining is a breeze and the rocks are tasty. If it weren't for the unstable stalactites and those pesky Q'ronar you might like it here.
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| — Magma Core description
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The Salt Pits feature white rocky terrain on a red dirt background. Most of the terrain in the Salt Pits is easier to mine compared to the stone in other biomes, except for dark gray strips which have a normal break speed. A new mechanic is added with this biome. Players will come across large red pulsating crystal clusters in the ground that, upon mining, will collapse several unstable stalactites from the ceiling that can kill monsters.
Enemies have 15% more HP and deal 15% more damage.
Salt Pits
| Hazard Level |
Biome Points Needed |
Biome Goals
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| Hazard 1 |
7 |
- Complete the dive
- Reach level 35 with the Driller
- Mine 3000 blocks of Rock and Stone
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| Hazard 2 |
17 |
- Complete the dive
- Upgrade 2 weapons to level 18
- Stand still for 45 seconds
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| Hazard 3 |
27 |
- Complete the dive
- Upgrade Cryo Grenade to level 21
- Destroy 15 stalagmite clusters
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| Hazard 4 |
37 |
- Complete the dive
- Complete 4 secondary objectives
- Upgrade Breach Cutter to level 25
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| Hazard 5 |
47 |
- Complete the dive
- Reach level 60 with the Classic Scout
- Equip 4 [PLASMA] weapons
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