Fire Spread Tweaks Mod (1.21.7, 1.20.1) – Control Fire Spread and Burn Duration

Fire Spread Tweaks Mod (1.21.7, 1.20.1) gives you precise control over fire behavior in Minecraft by disabling default fire spread and introducing customizable burn durations. In the vanilla game, fire can spread rapidly and unpredictably, often causing unwanted destruction. This mod prevents uncontrolled fire spread and allows fires to extinguish after a set period bringing balance, realism, and safety to your builds.

Instead of letting fire burn indefinitely or destroy entire forests by accident, this mod ensures that fire behaves in a controlled, configurable way. It’s perfect for builders, survival players, or server admins looking to maintain fire aesthetics without the risk of widespread damage.

Features

Disables Default Fire Spread
Automatically sets doFireTick to false when the world loads, preventing fire from spreading to nearby blocks.
Fire Automatically Extinguishes
Fires placed in the world will go out after a set time unless placed on specific blocks that support infinite burning (like netherrack, magma blocks, or soul sand).
Customizable Burn Duration
By default, fire burns for a random duration between 10 to 20 seconds. This introduces natural variation and makes fire feel less static.
Supports Realistic Behavior
Fires behave more like in real life short-lived, localized, and unable to spread without the player’s intent.
Block Exceptions for Infinite Burning
When fire is placed on blocks like netherrack, soul sand, or magma, it still burns forever, preserving traditional mechanics where needed.

Configurable Settings

timeFireBurnsInTicks: Sets how long fire should burn (default: 300 ticks or 15 seconds).
enableRandomizedFireDuration: Enables random variation in burn time.
minRandomExtraBurnTicks / maxRandomExtraBurnTicks: Define the range for additional random burn time (e.g., -100 to 100 ticks).

Screenshots:

Why Use This Mod?

Prevents fire-related griefing or accidental destruction on multiplayer servers.
Perfect for map creators who want controlled fire behavior in decorative builds.
Adds realism by making fire a temporary hazard rather than a permanent threat.
Balances fire usage in survival without needing full gamerule disables.
Easy to configure and lightweight, making it ideal for modpacks or performance-sensitive setups.