diff --git a/.gitignore b/.gitignore
index 5b704fa..d91dfbe 100644
--- a/.gitignore
+++ b/.gitignore
@@ -145,4 +145,5 @@ gradle-app.setting
 
 # End of https://www.toptal.com/developers/gitignore/api/intellij+all,gradle,forgegradle,java
 
-srgmap.cfg
\ No newline at end of file
+srgmap.cfg
+!lib/*.jar
\ No newline at end of file
diff --git a/README.MD b/README.MD
index 0264ed3..b6e6144 100644
--- a/README.MD
+++ b/README.MD
@@ -8,6 +8,7 @@ EndlessIDs is a modern rewrite of NotEnoughIDs which increases the limit even mo
 This mod also contains patches for the following mods:
 
 - AntiIDConflict
+- GalactiCraft
 - UndergroundBiomesConstructs
 - More Fun Quicksand Mod
 - WorldEdit
diff --git a/dependencies.gradle b/dependencies.gradle
index 7aed315..2481e78 100644
--- a/dependencies.gradle
+++ b/dependencies.gradle
@@ -13,4 +13,5 @@ dependencies {
     compileOnly(deobfMaven("curse.maven:dragonapi-235591:3574508")) // V31b
 
     compileOnly(deobfMaven("curse.maven:antiidconflict-246288:2308279")) // 1.3.5
+    compileOnly(files("lib/GalacticraftCore-1.7-3.0.12.504-deobf.jar"))
 }
diff --git a/lib/GalacticraftCore-1.7-3.0.12.504-deobf.jar b/lib/GalacticraftCore-1.7-3.0.12.504-deobf.jar
new file mode 100644
index 0000000..d67b769
Binary files /dev/null and b/lib/GalacticraftCore-1.7-3.0.12.504-deobf.jar differ
diff --git a/src/main/java/com/falsepattern/endlessids/mixin/mixins/common/galacticraft/ConfigManagerCoreMixin.java b/src/main/java/com/falsepattern/endlessids/mixin/mixins/common/galacticraft/ConfigManagerCoreMixin.java
new file mode 100644
index 0000000..b203a1e
--- /dev/null
+++ b/src/main/java/com/falsepattern/endlessids/mixin/mixins/common/galacticraft/ConfigManagerCoreMixin.java
@@ -0,0 +1,26 @@
+package com.falsepattern.endlessids.mixin.mixins.common.galacticraft;
+
+import com.falsepattern.endlessids.constants.ExtendedConstants;
+import com.falsepattern.endlessids.constants.VanillaConstants;
+import micdoodle8.mods.galacticraft.core.util.ConfigManagerCore;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.Constant;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+
+@Mixin(value = ConfigManagerCore.class,
+       remap = false)
+public abstract class ConfigManagerCoreMixin {
+    @ModifyConstant(method = "syncConfig",
+                    constant = @Constant(stringValue = "Biome ID for Moon (Mars will be this + 1, Asteroids + 2 etc). Allowed range 40-250."),
+                    require = 1)
+    private static String modifyHint(String constant) {
+        return "Biome ID for Moon (Mars will be this + 1, Asteroids + 2 etc). Allowed range 40-" + (ExtendedConstants.biomeIDCount - 6);
+    }
+
+    @ModifyConstant(method = "syncConfig",
+                    constant = @Constant(intValue = VanillaConstants.biomeIDCount - 6),
+                    require = 1)
+    private static int modifyLimit(int constant) {
+        return ExtendedConstants.biomeIDCount - 6;
+    }
+}
diff --git a/src/main/java/com/falsepattern/endlessids/mixin/plugin/Mixin.java b/src/main/java/com/falsepattern/endlessids/mixin/plugin/Mixin.java
index 4317b3a..7564fdd 100644
--- a/src/main/java/com/falsepattern/endlessids/mixin/plugin/Mixin.java
+++ b/src/main/java/com/falsepattern/endlessids/mixin/plugin/Mixin.java
@@ -54,6 +54,9 @@ public enum Mixin implements IMixin {
             RenderGlobalMixin(Side.CLIENT, always(), "vanilla.RenderGlobalMixin"),
         //endregion client
     //endregion Minecraft
+    //region GalactiCraftCore->common
+        ConfigManagerCoreMixin(Side.COMMON, require(TargetedMod.GALACTICRAFTCORE), "galacticraft.ConfigManagerCoreMixin"),
+    //endregion GalactiCraftCore->common
     //region UBC->common
         OreUBifierMixin(Side.COMMON, require(TargetedMod.UBC), "ubc.OreUBifierMixin"),
         BiomeUndergroundDecoratorMixin(Side.COMMON, require(TargetedMod.UBC), "ubc.BiomeUndergroundDecoratorMixin"),
diff --git a/src/main/java/com/falsepattern/endlessids/mixin/plugin/TargetedMod.java b/src/main/java/com/falsepattern/endlessids/mixin/plugin/TargetedMod.java
index 50ce6c2..73961f9 100644
--- a/src/main/java/com/falsepattern/endlessids/mixin/plugin/TargetedMod.java
+++ b/src/main/java/com/falsepattern/endlessids/mixin/plugin/TargetedMod.java
@@ -11,6 +11,7 @@ import static com.falsepattern.lib.mixin.ITargetedMod.PredicateHelpers.*;
 @RequiredArgsConstructor
 public enum TargetedMod implements ITargetedMod {
 
+    GALACTICRAFTCORE("GalactiCraftCore", false, startsWith("galacticraftcore")),
     UBC("Underground Biomes Constructs", false, startsWith("undergroundbiomesconstructs-")),
     COFHLIB("CoFH Lib", false, startsWith("cofhlib-")),
     DRAGONAPI("DragonAPI", false, startsWith("dragonapi")),