Defend your base. Survive the waves. Protect the Core.
Siege Core: Base Invasions turns your Minecraft base into the target of dangerous monster invasions, boss waves, elite enemies, traps, defense blocks, special events and long-term progression.
Siege Core: Base Invasions adds a full base-defense system to Minecraft. Craft and place a powerful Siege Core, build defenses around it, invite your team and prepare for enemy waves.
Your base generates Threat Points. Once the threat level is full, an invasion is prepared. Enemies will attack your base and try to destroy your Siege Core.
Survive all waves to progress.
If the Core falls, the invasion is lost.
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The mod includes a custom Siege Codex. Players receive it once when joining or creating a world.
Recipes are displayed with item icons instead of plain text.
Successful invasions reward Siege Tokens. Spend them in the Core UI to upgrade your base or buy defense blocks.
Upgrade success and error messages use clean toast-style notifications.
A defensive blockade used to slow down enemies, create chokepoints and protect the Core. Siege mobs can attack barricades, giving players time to react.
Damages Siege mobs that step on or move across it.
Slows Siege mobs and helps control enemy movement.
Deals area damage to Siege mobs and is useful against groups.
Slows nearby Siege mobs in a radius.
Supports your defense by helping repair the Core during active invasions.
Your base builds up Threat through time, activity, monster kills and ore mining.
Default invasion threshold: 3500 Threat Points
| Stage | Waves |
|---|---|
| Stage 1 | 3 Waves |
| Stage 2 | 6 Waves |
| Stage 3 | 9 Waves |
| Stage 4 | 12 Waves |
| Stage 5 | 15 Waves |
The HUD and Core UI can show Wave Preview information such as enemy count, boss wave status, event chance and possible Infinity Mode combinations.
Completing waves and invasions grants Core XP. Higher Core Levels improve long-term base strength, durability and reward scaling.
| Event | Effect |
|---|---|
| 🌕 Blood Moon | More dangerous enemy pressure |
| 🌫️ Dark Fog | Darker and more chaotic combat |
| 🦇 Sky Attack | More aerial pressure |
| 🐗 Siege Breaker | More Core-focused pressure |
| 🏹 Arrow Rain | Ranged pressure and disruption |
| ⭐ Elite Surge | Increased Elite Mob chance |
| 👑 Boss Rush | Special boss wave with additional bosses |
Siege mobs scale with stage, Infinity Level, active events, elite modifiers and boss waves. Siege mobs do not burn in daylight during active invasions.
The Core must remain accessible. Siege Core uses a smart path check to prevent players from sealing the Core completely.
Right-click the Siege Core to open the custom Core UI.
/siege hud on /siege hud off
/siege team /siege team add <player> /siege team remove <player> /siege team promote <player> /siege team demote <player> /siege accept
Server owners and modpack creators can add custom mobs through config with weights, wave requirements, scaling multipliers, elite flags, boss behavior and allowed events.
The mod includes an optional update checker. If no internet connection is available or the check fails, no warning is shown.
Because the mod includes a custom UI and HUD, it must be installed on both the server and the client.
Siege Core is designed to make Minecraft bases matter again. Instead of building a perfectly safe home, your base becomes something you must actively defend.
Build. Defend. Survive. Upgrade. Repeat.
![Core Upgrades [V 1.0.0+]](https://media.forgecdn.net/attachments/1747/900/screenshot-2026-06-21-121930-png.png)
![All Blocks [V 1.0.0+]](https://media.forgecdn.net/attachments/1747/901/screenshot-2026-06-21-122125-png.png)
![Siege Invasion HUD [V 1.0.0+]](https://media.forgecdn.net/attachments/1747/898/screenshot-2026-06-21-113919-png.png)
![Core Overview [V 1.0.0+]](https://media.forgecdn.net/attachments/1747/899/screenshot-2026-06-21-121924-png.png)
