diff --git a/SteamWar-Patches/Disable_legacy_data_conversation.patch b/SteamWar-Patches/Disable_legacy_data_conversation.patch
new file mode 100644
index 0000000..2e03805
--- /dev/null
+++ b/SteamWar-Patches/Disable_legacy_data_conversation.patch
@@ -0,0 +1,82 @@
+Index: src/main/java/net/minecraft/server/DataConverterRegistry.java
+IDEA additional info:
+Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
+<+>UTF-8
+===================================================================
+diff --git a/src/main/java/net/minecraft/server/DataConverterRegistry.java b/src/main/java/net/minecraft/server/DataConverterRegistry.java
+--- a/src/main/java/net/minecraft/server/DataConverterRegistry.java	(revision ec1b4311cebfd9bc35a5f84f56df46cf7319649a)
++++ b/src/main/java/net/minecraft/server/DataConverterRegistry.java	(date 1609015897972)
+@@ -1,26 +1,63 @@
+ package net.minecraft.server;
+ 
+ import com.google.common.collect.ImmutableMap;
+-import com.mojang.datafixers.DSL;
+-import com.mojang.datafixers.DataFixer;
+-import com.mojang.datafixers.DataFixerBuilder;
+-import com.mojang.datafixers.Typed;
++import com.google.common.collect.Maps;
++import com.mojang.datafixers.*;
+ import com.mojang.datafixers.schemas.Schema;
++import com.mojang.datafixers.types.DynamicOps;
++import com.mojang.datafixers.types.Type;
++import com.mojang.datafixers.types.templates.TypeTemplate;
++import com.mojang.datafixers.util.Pair;
++
++import java.util.Map;
+ import java.util.Objects;
++import java.util.Optional;
+ import java.util.function.BiFunction;
++import java.util.function.Supplier;
+ 
+ public class DataConverterRegistry {
+ 
+     private static final BiFunction<Integer, Schema, Schema> a = Schema::new;
+     private static final BiFunction<Integer, Schema, Schema> b = DataConverterSchemaNamed::new;
+-    private static final DataFixer c = b();
++    private static final DataFixer c = new DataFixer() {
++        @Override
++        public <T> Dynamic<T> update(DSL.TypeReference typeReference, Dynamic<T> dynamic, int i, int i1) {
++            return dynamic;
++        }
++
++        @Override
++        public Schema getSchema(int i) {
++            return new Schema(i, null){
++                @Override
++                public void registerTypes(Schema schema, Map<String, Supplier<TypeTemplate>> entityTypes, Map<String, Supplier<TypeTemplate>> blockEntityTypes) {}
++
++                @Override
++                public Map<String, Supplier<TypeTemplate>> registerEntities(Schema schema) {
++                    return Maps.newHashMap();
++                }
++
++                @Override
++                public Map<String, Supplier<TypeTemplate>> registerBlockEntities(Schema schema) {
++                    return Maps.newHashMap();
++                }
+ 
+-    private static DataFixer b() {
+-        DataFixerBuilder datafixerbuilder = new DataFixerBuilder(SharedConstants.getGameVersion().getWorldVersion());
++                @Override
++                protected Map<String, Type<?>> buildTypes() {
++                    return Maps.newHashMap();
++                }
+ 
+-        a(datafixerbuilder);
+-        return datafixerbuilder.build(SystemUtils.e());
+-    }
++                @Override
++                public Type<?> getType(DSL.TypeReference type) {
++                    return null;
++                }
++
++                @Override
++                public Type<?> getChoiceType(DSL.TypeReference type, String choiceName) {
++                    return null;
++                }
++            };
++        }
++    };
+ 
+     public static DataFixer a() {
+         return DataConverterRegistry.c;
diff --git a/SteamWar-Patches/Dont_write_unwritable_json_files.patch b/SteamWar-Patches/Dont_write_unwritable_json_files.patch
new file mode 100644
index 0000000..a2c8436
--- /dev/null
+++ b/SteamWar-Patches/Dont_write_unwritable_json_files.patch
@@ -0,0 +1,18 @@
+Index: src/main/java/net/minecraft/server/JsonList.java
+IDEA additional info:
+Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
+<+>UTF-8
+===================================================================
+diff --git a/src/main/java/net/minecraft/server/JsonList.java b/src/main/java/net/minecraft/server/JsonList.java
+--- a/src/main/java/net/minecraft/server/JsonList.java	(revision ec1b4311cebfd9bc35a5f84f56df46cf7319649a)
++++ b/src/main/java/net/minecraft/server/JsonList.java	(date 1609013366119)
+@@ -156,6 +156,9 @@
+     }
+ 
+     public void save() throws IOException {
++        if(!this.c.canWrite())
++            return;
++
+         Collection<V> collection = this.d.values();
+         String s = this.b.toJson(collection);
+         BufferedWriter bufferedwriter = null;