Descent Layers · 1.0
Deeper Gravel Lands — Layer 2 Hazards & Prep
Deeper Gravel Lands is layer 2 in Casualties: Unknown: darker gravel caves, flooding risk, extra traps, and cave ticks after Gravel Lands.
What is Deeper Gravel Lands?
Deeper Gravel Lands is layer 2—the direct continuation of Gravel Lands on the eleven-layer planet stack named in the Steam store description. Official marketing still says each layer brings its own challenges and that you must adapt as you descend; it does not spell out gravel-specific hazards. Community layer documentation checked the same day describes this stage as more dangerous gravel caverns where darkness and water pressure matter more than in layer 1.
If you need the full layer count and naming order, use how many layers before you optimize loadouts for a single biome.
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Depth markers appear in official media but trailers do not label layer names—a blurred vision frame is cave footage only, not proof you are in layer 2.
What environment and threats get harder?
Community-reported comparisons between layer 1 and layer 2 (2026-11-10) highlight these shifts:
| Factor | Community-reported change vs Gravel Lands |
|---|---|
| Lighting | No background light holes; darkness becomes a core threat |
| Water | Groundwater plus lumalgae pools; flooding called out as a main danger |
| Terrain tail | Sand and sandstone toward the end of the layer |
| Creatures | Shade crawler plus cave tick; cave tick spawner listed |
| Traps | Geyser, jump pad, spike trap plus barbed fence, bear trap |
| Structures | Wooden structures and concrete structures |
| Flora overlap | Several layer 1 plants repeat (glowplant, geotree, hydreed, stoneplant, leadbush, ceiling rye) |
| Temperature | Average about 17.5°C, roughly 12.5°C–21.4°C in community tables |
None of the creature or plant strings above are quoted on the Steam store page; keep them as community-reported names you may encounter, not wiki guarantees.
Official Steam themes still apply: injuries are unavoidable, prior expeditions left loot behind, and helpful pickups can still kill you. Darkness plus flooding is exactly when a stumble into spikes or ticks becomes a bleeding event you must solve under pressure.

What resources and gear matter most on layer 2?
The publisher’s feature list emphasizes crafting, tools for efficient travel, and flora for patching yourself up—all still true here. Community notes add concrete structures and continued wooden scaffolding, which may hold salvage but also trap lines you cannot see in the dark.
Prep themes (not a verified loot table):
- Artificial light — Community text says background illumination from layer 1 does not carry over. Demo-era footage shows a Headlamp recipe; verify materials in crafting recipes.
- Water risk management — Flooding and groundwater are community-flagged threats. Official Steam copy does not define drowning rules; do not assume swim mechanics we have not sourced.
- Anti-bleed and anti-infection — Extra traps and cave ticks imply more wound vectors. Pair bleeding workflow with infection supplies before you push toward sand transitions.
- Carry quality over quantity — Three hundred items exist in the full game per Steam, but dragging junk through dark flooded tunnels raises encumbrance and mistake rates.

Combat footage from official trailers shows melee encounters in lit caves; it is not labeled as Deeper Gravel Lands—use it only to recognize fight-and-bleed loops, not to predict layer-specific spawns.
What should you prioritize before going deeper?
Use this order after you leave Gravel Lands and before you commit to layer 3:
- Solve lighting and navigation — If you cannot see trap outlines or water depth, fix light and ropes before you speedrun downward.
- Clear active medical debt — Stabilize blood loss and infection per the medical guide. Blurred vision and status icons in official UI hint at cascading debuffs when you ignore vitals.
- Respect flooding — Community-reported flooding is unverified on Steam; still treat sudden water level changes as a reason to retreat to dry ground and save.
- Read trap density — Barbed fence and bear trap entries exist only in community lists. Move deliberately; jump pads and geysers persist from layer 1 according to those same lists.
- Save at the layer gate — Bottom-of-layer Save and exit vs Continue flow is community-reported (see how many layers hub). Banking progress before Dried Desert is safer than limping forward with unknown sand/oil mechanics ahead.
Steam also lists adjustable loot and danger values on the main menu. Layer 2 is a fair place to raise danger only after light and bandaging loops feel automatic.
What connects to layer 3 and the wider run?
The next layer after Deeper Gravel Lands is Dried Desert (layer 3) in the shared eleven-layer order. Community previews describe wide sand caves, tall drops, and oil pools—mechanics we have not double-sourced with Steam text here.
Demo players should remember: community trivia notes the demo loops after the fifth layer rather than opening the full stack, while the paid game lists all eleven layers on Steam. Full-game medical complexity continues in fibrillation and broken bones guides as hazards scale.
For hardware comfort on long dark sessions, see system requirements. For run structure and endings, the endings guide stays separate from layer hazard lists.
Sources checked
- https://store.steampowered.com/app/4576490/Casualties_Unknown/ (eleven layers, survival/injury/crafting features)
- https://casualtiesunknown.miraheze.org/wiki/Layers (layer 2 threats, flooding, darkness, creatures, traps — community-reported detail)
- https://store.steampowered.com/app/4576510/Casualties_Unknown_Demo/ (demo includes early layers through community-aligned five-layer scope)
Last checked 2026-11-10 against the sources above, game version 1.0.
Screenshots and trailer frames: official Steam store page and trailers, © Orsoniks / Oro Interactive.
FAQ
What layer number is Deeper Gravel Lands?
How is Deeper Gravel Lands different from Gravel Lands?
Is Deeper Gravel Lands inside the demo?
What layer follows Deeper Gravel Lands?
Which medical topics spike here?
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