Cold Sweat: Altitude is a Cold Sweat addon that adds fully configurable altitude-based temperature zones using a simple band system.
Requires Cold Sweat (v2.4.1).
Define custom temperature behaviour at any height - from deep underground to the upper sky - entirely through config. Each band can control temperature modifiers, dimension filtering, priority, protection requirements, shelter behaviour, and player warnings.
Features:
- Configurable altitude bands with min/max Y ranges
- Additive or multiplicative temperature modifiers
- Dimension whitelist/blacklist support
- Priority-based band resolution (no stacking conflicts)
- Item-tag-based protection scaling (For pack makers)
- Optional shelter-based exposure reduction
- Configurable heat sources from Create: Aeronautics
- Shelter detection for Create: Aeronautics ships (Sable contraptions)
- Per-band warning messages and cooldowns
- Clean integration with Cold Sweat (no overrides)
- Runtime commands for debugging and inspection
Designed to be pack-agnostic, Cold Sweat: Altitude lets modpack authors create progression systems like cold mountain peaks, warm cave layers, or dangerous upper atmospheres without writing custom code.
Note: This mod has been made for custom pack, however I thought others may find it useful
This is an addon and is not affiliated with or endorsed by the Cold Sweat mod or its authors.
Config
Cold Sweat: Altitude uses altitude bands to control temperature based on height.
Each band defines a Y-level range and the temperature change within that range.
Config location
config/coldsweat_altitude-server.toml
Reload after editing (while world is running)
/coldsweat_altitude reload
Basic Band Example
[[bands]]
id = "high_mountains"
enabled = true
dimensions = ["minecraft:overworld"]
dimensionMode = "WHITELIST"
minY = 192
maxY = 255
temperatureModifier = -0.08
modifierMode = "ADD"
priority = 10
enableShelterCheck = true
shelterCheckRadius = 4
shelterReduction = 0.35
Important Values
minY / maxY
Height range where the band applies.
temperatureModifier
Temperature change applied in this band.
Negative values make it colder, positive values make it warmer.
modifierMode
ADD = adds directly (recommended)
MULTIPLY = scales existing temperature
Example:
-0.45 makes the area colder by 0.45
priority
If multiple bands match, the highest priority band wins.
dimensions / dimensionMode
WHITELIST = only listed dimensions
BLACKLIST = exclude listed dimensions
Shelter
If enabled, the mod checks if the player is inside a sheltered space.
shelterCheckRadius
Controls how far the shelter scan checks. Higher values detect larger rooms but cost more performance.
shelterReduction
Controls how much shelter reduces the altitude effect:
0.0 = no reduction
0.5 = up to 50% reduction
0.75 = up to 75% reduction
1.0 = up to 100% reduction
Example:
If temperatureModifier = -0.45 and shelterReduction = 0.75, full shelter leaves only 25% of the cold effect.
Protection Items
Custom item tags can be used to make existing equipment count as altitude protection.
protectionTag = "coldsweat_altitude:cold_altitude_protection"
requiredPieces = 1
protectionReductionPerPiece = 0.20
fullProtectionPieces = 4
protectionTag
The item tag checked on equipped armor/items.
requiredPieces
How many matching pieces are required before protection starts.
protectionReductionPerPiece
The reduction per matching piece.
fullProtectionPieces
The number of pieces treated as full protection.
Aeronautics Heat
If Create: Aeronautics / Sable is installed, ship interiors can use Aeronautics heat sources.
aeronauticsBurnerHeat = 0.14
aeronauticsBurnerRange = 7.0
aeronauticsSteamVentHeat = 0.12
aeronauticsSteamVentRange = 8.0
Higher heat values warm the player more.
Higher ranges make the heat source reach farther.
Debugging
Use:
/coldsweat_altitude status
This shows the active band, altitude modifier, shelter value, protection value, and detected heat sources.
