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CurseForge · Minecraft mod

SporeWithin

SporeWithin turns Spore into a tactical biological horror: track hidden parasites buried right under your feet by sound, burn infected remains, and fight surface defense waves before the Proto-Brain awakens.

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Quick answer

Which SporeWithin release should I use?

Updated today
Latest stable file SporeWithin-1.0.1.jar
Game version 1.20.1
Loader Forge

SporeWithin-1.0.1.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.

Where it goes

Is SporeWithin required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

What else does SporeWithin-1.0.1.jar need?

SporeWithin-1.0.1.jar. Change the file and its required mods may change too.

All 1 required mods have matching files

Install Fungal Infection: Spore first. We found matching files for this game-version and loader setup.

Fungal Infection: Spore Needed by SporeWithin-1.0.1.jar
required
Matching file found Matched file: spore_1.20.1_2.2.0j.jar

We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add SporeWithin without breaking your instance.

Built for SporeWithin-1.0.1.jar. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use SporeWithin-1.0.1.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    Install Fungal Infection: Spore first. We found matching files for this game-version and loader setup.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside SporeWithin-1.0.1.jar. It opens that exact file at the source.

About this project

What does SporeWithin add?

🦠 SporeWithin: The Enemy Within

🧱 **Platform:** Minecraft 1.20.1 (Forge) | 🦠 **Dependency:** Requires Spore Mod | 🌐 **Multiplayer:** Dedicated Server Ready

> *"The danger is no longer creeping from distant caves... It walks among your villagers, dies in your fields, and burrows directly beneath your feet."*

**SporeWithin** is a deep tactical biological horror expansion and ecosystem overhaul for the **Spore** mod on Minecraft 1.20.1 (Forge).

In vanilla Spore, infection often begins with chaotic entity spawns in deep underground caverns where players rarely tread. **SporeWithin completely redesigns this progression into an insidious, stealth-driven biological invasion.** The parasite infiltrates surface humanoids, secretes embryonic organoids right beneath the surface soil, and challenges players to actively track, excavate, and eradicate nests before the hive mind awakens on **Day 7**.


⚙️ Development & Transparency Note

> **Code Assistance:** Parts of this mod's code and mathematical systems were developed with the assistance of AI tools.
> **Quality Assurance:** Every single mechanic, event hook, and tick loop has been extensively playtested in real in-game survival scenarios, profiled for performance (no TPS drops / memory leaks), and manually debugged.
>
> If you encounter any bugs or edge cases, please report them on the Issues page — they will be investigated and fixed promptly!

🧬 Core Features & Mechanics

💀 1. The Parasitic Vessel Outbreak

* **Stealth Infection**: Starting on the first night, living humanoids (Zombies, Villagers, Pillagers, Players) have a daily scaling chance (**1.0%** on Day 0, increasing by **+0.2%** each in-game day up to a hard cap of **5.0%**) to spawn as hidden carriers of the **Spore Infection**.
* **Aggressive Vessel AI**: Infected vessels become hyper-aggressive, hunting down players, villagers, and monsters.
* **Persistent Hostiles**: Infected mobs never naturally despawn — they will live out the infection until their vital organs fail.
* **The Death Event**: When a vessel perishes, its corpse collapses into a **Human Remains** block while the embryonic parasite burrows underground.


🔨 2. Destroy or Burn the Remains!

* **Race Against the Clock**: Upon a vessel's death, players have a brief window (**30 to 180 seconds**) to locate and destroy the **Human Remains**.
* **Flexible Neutralization**: You can **break the remains with any tool or bare hands, burn them with Flint & Steel, or destroy them with lava/explosives** to permanently neutralize the parasite before it establishes a nest.
* **Dynamic Relief Period**: Neutralizing the remains pacifies the local territory for **10–15 minutes** (this cooldown decreases by 1 minute for every elapsed game day, with a minimum 2-minute safety floor).


🕳️ 3. Subterranean Mounds & Acoustic Surface Tracking

* **Buried Organoids**: If remains are not destroyed in time, the parasite establishes a sealed 3x2x3 subterranean burrow **just 2–3 blocks directly beneath the surface terrain**.
* **Sound Tracking (Madness Heartbeat)**: You don't need X-Ray or cave expeditions. Walking across the ground above a buried Mound produces an ominous, muffled **heartbeat of Madness** (ambient.madness), alerting players to start digging!
* **Surface Vegetation**: By Stage 2, the soil directly above the mound begins rotting into fungal mycelium and parasitic growths.


🛡️ 4. Tiered Defensive Squads & Boss Waves

Mounds accumulate **Bio-Points** (1 pt/sec) to fuel their evolution and actively defend themselves if players approach their detection perimeter or attack them.
*Defenders burst out **strictly on the surface above the mound** with dirt explosions, spore geysers, and shrieking alarms!*

Mound Stage Detection Area Full Squad Defense (Bulk Discount) Single Defender (Fallback)
**Stage 1** (Day 0–1) **3x3 / 5x5 blocks** **3 Basic Infected** (*100 pts*) 1 Basic (*35 pts*)
**Stage 2** (Day 1–2.5) **3x3 / 5x5 blocks** **4 Parasites** (2 Evolved + 2 Basic) (*200 pts*) 1 Evolved (*70 pts*)
**Stage 3** (Day 2.5–5) **10x10 blocks** **5 Parasites** (1 Hyper + 2 Evolved + 2 Basic) (*380 pts*) 1 Hyper (*150 pts*)
**Stage 4** (Day 5–7) **20x20 blocks** **Boss Wave**: 8 Parasites in **2 timed waves** (*650 pts*) 1 Hyper (*150 pts*)

> [!TIP]
> **Evolution Penalties**: Attacking a mound directly drains its Bio-Points, and eliminating its defenders inflicts an additional **-25 Bio-Point penalty**, physically knocking the hive's evolution backward!


⏳ 5. The 7-Day Evolution Timeline (Proto-Brain Metamorphosis)

* **Threshold**: Accumulating **8400 Bio-Points** (~7 in-game days of undisturbed growth) causes the Stage 4 Mound to undergo violent metamorphosis into the **Proto-Brain**.
* **The Global Awakening**: When the Proto-Brain awakens, the global containment is broken, unlocking unrestricted natural Spore spawns worldwide and unleashing the full planetary apocalypse.


⚙️ Configuration & Customization

Every aspect of **SporeWithin** is fully balanced out of the box but completely configurable in config/sporewithin-common.toml:
* Starting & daily scaling infection chances (and max caps).
* Bio-Point thresholds for stages and 7-day evolution timer.
* Defense squad compositions, costs, and cooldowns.
* Territory relief/calm cooldown durations and daily reductions.


📦 Requirements & Installation

  1. Install **Minecraft Forge 1.20.1** (Recommended 47.3.0+).
  2. Download and install the **Spore** mod for 1.20.1.
  3. Place sporewithin-1.0.0.jar into your .minecraft/mods folder.
  4. Fully compatible with Singleplayer, LAN, and Dedicated Multiplayer Servers!

👁️ What Lies Ahead... (Upcoming Updates)

> *"You may have survived the first outbreaks, but do not be fooled: the Hivemind is watching, learning, and adapting to your presence."*

**SporeWithin** is actively evolving. Here is a glimpse of what is currently in development:

* 🧠 **Adaptive Hive Intelligence**: The parasite will soon begin recognizing human resistance. The more nests you burn, the more aggressively and strategically the Hive will retaliate.
* 🧪 **Decontamination & Medical Tech**: Specialized field serums, chemical containment devices, and experimental vaccines to cleanse infected territories.
* 🌪️ **Atmospheric & World Anomalies**: Unpredictable biological climate events when regional infection levels reach critical mass.
* 🕳️ **Subterranean Research Relics**: Abandoned bio-laboratories with forgotten lore, blueprints, and high-risk extraction zones.

💬 *Leave your feedback in the comments and stay tuned — the infection has only begun to evolve!*

Project description from CurseForge.

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Recent files

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