diff --git a/core/assets/maps/craters.mmap b/core/assets/maps/craters.mmap
index 0382c65d84..551a0376b6 100644
Binary files a/core/assets/maps/craters.mmap and b/core/assets/maps/craters.mmap differ
diff --git a/core/src/io/anuke/mindustry/content/Blocks.java b/core/src/io/anuke/mindustry/content/Blocks.java
index 6d54064b79..b58f931a4c 100644
--- a/core/src/io/anuke/mindustry/content/Blocks.java
+++ b/core/src/io/anuke/mindustry/content/Blocks.java
@@ -1359,7 +1359,7 @@ public class Blocks implements ContentList{
         //region units
 
         spiritFactory = new UnitFactory("spirit-factory"){{
-            requirements(Category.units, ItemStack.with(Items.copper, 70, Items.lead, 110, Items.silicon, 100));
+            requirements(Category.units, ItemStack.with(Items.copper, 70, Items.lead, 110, Items.silicon, 80));
             type = UnitTypes.spirit;
             produceTime = 5700;
             size = 2;
diff --git a/desktop/build.gradle b/desktop/build.gradle
index 674b46e30b..713244db0d 100644
--- a/desktop/build.gradle
+++ b/desktop/build.gradle
@@ -69,6 +69,12 @@ task dist(type: Jar){
     }
 }
 
+task ttt(){
+    fileTree("/home/anuke/Projects/Mindustry/deploy/Mindustry-Linux64-4-beta-66/jre/lib/amd64/newst").each{t ->
+        println("\"jre/lib/amd64/${t.absoluteFile.name}\",")
+    }
+}
+
 //note: call desktop:dist beforehand
 task packrCmd(){
 
@@ -83,6 +89,8 @@ task packrCmd(){
             outDir = file("packr-out/")
             mainClass = project.ext.mainClassName
             classpath = ["desktop/build/libs/desktop-release.jar"]
+            removePlatformLibs = ["desktop/build/libs/desktop-release.jar"]
+
             vmArgs = ["Djava.net.preferIPv4Stack=true"]
             minimizeJre = "desktop/packr_minimize.json"
             jdk = JDK_DIR + "jdk-${getPlatform().toString().toLowerCase()}.zip"
diff --git a/desktop/packr_minimize.json b/desktop/packr_minimize.json
index 0887fdf720..0f3ad13771 100644
--- a/desktop/packr_minimize.json
+++ b/desktop/packr_minimize.json
@@ -23,9 +23,17 @@
 		"javax/accessibility",
         "com/sun/corba",
         "com/sun/jmx",
+        "com/sun/org",
+        "com/sun/imageio",
         "com/sun/jndi",
         "com/sun/xml",
         "com/sun/script",
+        "sum/awt",
+        "sun/java2d",
+        "sun/font",
+        "sun/rmi",
+        "sun/swing",
+        "java/util/stream",
         "com/sun/media",
         "com/sun/naming",
         "java/awt",
@@ -67,7 +75,35 @@
       "paths": [
         "jre/lib/amd64/libawt.so",
         "jre/lib/amd64/libawt_xawt.so",
-        "jre/lib/amd64/libjawt.so"
+        "jre/lib/amd64/libjawt.so",
+        "jre/lib/amd64/libhprof.so",
+        "jre/lib/amd64/libdt_socket.so",
+        "jre/lib/amd64/libsplashscreen.so",
+        "jre/lib/amd64/libunpack.so",
+        "jre/lib/amd64/liblcms.so",
+        "jre/lib/amd64/libnpt.so",
+        "jre/lib/amd64/libmlib_image.so",
+        "jre/lib/amd64/libjsig.so",
+        "jre/lib/amd64/libinstrument.so",
+        "jre/lib/amd64/libjaas_unix.so",
+        "jre/lib/amd64/libj2pcsc.so",
+        "jre/lib/amd64/libsaproc.so",
+        "jre/lib/amd64/libsunec.so",
+        "jre/lib/amd64/libj2pkcs11.so",
+        "jre/lib/amd64/libjsdt.so",
+        "jre/lib/amd64/libjdwp.so",
+        "jre/lib/amd64/libjava_crw_demo.so",
+        "jre/lib/amd64/libfreetype.so",
+        "jre/lib/amd64/libmanagement.so",
+        "jre/lib/amd64/libsctp.so",
+        "jre/lib/amd64/libj2gss.so",
+        "jre/lib/amd64/libjpeg.so",
+        "jre/lib/amd64/libfreetype.so.6",
+        "jre/lib/amd64/libjsoundalsa.so",
+        "jre/lib/amd64/libjsound.so",
+        "jre/lib/amd64/libattach.so",
+        "jre/lib/amd64/libawt_headless.so",
+        "jre/lib/amd64/libfontmanager.so"
       ]
     },
     {