Zombies Break Doors

Hiding behind a door used to mean safety.
Not anymore.

Zombies Break Doors is a Forge mod that significantly enhances zombie AI by allowing zombies to break common player-made barriers and now even climb ladders to reach players. Wooden doors, glass walls, and vertical escapes are no longer reliable defenses - zombies will exploit weak base design and pursue players relentlessly.

The mod is fully configurable, highly modpack-friendly, and compatible with both vanilla and modded content.

🔥 Core Features

✅ All zombies can break wooden doors

Works on any difficulty
Supports modded doors, including 3-block-high doors such as Dramatic Doors.

✅ Iron doors can be broken (configurable)

✅ Glass blocks & glass panes can be destroyed (configurable)

Supports modded glass via Forge tags
Glass barriers are cleared properly for passage (1×2)

✅ Zombies can see through glass

Players are detected through glass blocks
Leads to intentional and targeted glass-breaking behavior

✅ Trapdoors can be destroyed (configurable)

Wooden, iron, and modded trapdoors supported
Trapdoor-based “fake doors” are no longer safe

✅ Zombies can climb ladders (new in v1.5.0)

Zombies can climb ladders and other climbable blocks upward to reach players
Uses vanilla-style movement (no teleporting, no cheating)
Fully configurable via can_climb_ladders

✅ Vanilla-style block breaking animation

Visible cracking effect for all door-parts
Zombies stop, focus, and break barriers over time

🧠 Smarter Zombie Behavior

Zombies actively hunt players once detected
Glass no longer blocks line of sight
Doors, trapdoors, and glass buy time - not safety
Iron doors delay zombies, but do not stop them permanently

Base design now matters.

⚙️ Configuration

All features are configurable via a Forge COMMON config:

Enable/disable specific block breaking
Configure break times
Toggle ladder climbing

(See Gallery for an example config.)

🎮 Gameplay Impact

Prevents door-spamming as a cheap escape
Makes glass a tactical risk instead of perfect safety
Increases tension in early- and mid-game survival
Encourages layered defenses and smart base layouts
Ideal for horror, apocalypse, and hardcore experiences

⚙️ Technical Details

Minecraft: 1.20.1
Loader: Forge (47.x)
Java: 17
Client: Optional
Server: Required
Configuration: Yes (COMMON config)

✅ Compatibility

Works with most Forge mods
Supports modded:
- Glass blocks & panes
- Trapdoors
- Doors (including multi-block doors such as Dramatic Doors)
- Ladders & climbable blocks
Compatible with modded zombies
Zombified Piglins break blocks only while angry
No entity or block replacements
Pure AI and behavior enhancement