Deepsnow Accumulation

Quickstart

No crafting or setup is required. Install the mod, load a world, and travel to any cold or snowy biome (such as a Snowy Plains, Ice Spikes, or Frozen Peaks). Wait for it to snow — or use /weather rain to trigger precipitation — and watch vanilla snow layers begin to stack up on the ground around you. For the full blizzard experience, use /weather thunder while in a snowy biome and look around at ground level.

Overview

Deepsnow Accumulation brings a living, reactive snowfall system to cold biomes. Snow layers gradually build up during precipitation, piling higher the longer a storm lasts. During thunderstorms, the weather escalates into a full blizzard, complete with dense fog and heavy snowflakes. Everything works automatically — just be in the right biome when the weather turns.

What It Adds

• Gradual snow accumulation — Snow layers grow taller over time while it snows, rather than staying at a single layer.
• Deep snow columns — Layers stack up to a second snow block (8 layers), and connected columns can reach up to 16 layers total.
• Blizzard mode — Thunderstorms in snowy biomes trigger a more intense storm profile with accelerated accumulation, blue-gray terrain fog, and fast-falling snowflake particles.
• Surface-aware visuals — Blizzard fog and particles appear near the ground surface but fade out underground, so caves and mines remain unaffected.

How To Use

There is nothing to do — the mod runs entirely in the background. Simply be present in a cold or snowy biome while it rains or thunders.

Normal snowfall:

• Snow layers accumulate on valid surfaces around you.
• Layers build from 1 up to 8 (forming a full second snow block), and connected columns cap at 16 layers.

Thunderstorm blizzard:

• Accumulation attempts happen more frequently.
• A muted blue-gray fog closes in around you.
• Dense, fast-falling snowflake particles fill the air.
• These effects only appear when you are near ground level — ducking into a deep cave or mine removes them entirely.

Abilities And Mechanics

Snow Placement Rules

Snow will only accumulate on a surface if all of the following are true:

• The block above the surface can see the sky (open sky visibility required).
• The biome is cold enough to snow at that elevation.
• The surface block has a full solid top face.

Snow will never accumulate on:

• Ice, Packed Ice, Blue Ice, or Frosted Ice
• Barrier blocks
• Any surface without a complete solid top (e.g., slabs counted as the top half are fine, but non-full-top surfaces are excluded)

Layer and Column Limits

Blizzard Visuals

Blizzard effects (fog and extra particles) require:

• Active thunderstorm
• Snowy biome
• Player or camera within approximately 12 blocks below the local motion-blocking surface

This means the storm looks dramatic under tree canopies, beneath slabs, near shallow overhangs, and under doors — but disappears once you go deep underground, keeping cave exploration immersion intact.

Progression And Strategy

• Build shelter before storms — Enclosing an area with a roof (even a slab ceiling) prevents snow from accumulating inside, since sky visibility is required for placement.
• Use blizzards as atmosphere — The blizzard's fog and particle density make thunderstorms in cold biomes feel genuinely harsh; building outposts or staging adventures around storm timing adds a survival dimension.
• Ice surfaces stay clear — Roads or pathways paved with packed ice or blue ice will never be buried, making them practical for cold-biome travel routes.