diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/json/JsonPatch.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/json/JsonPatch.kt
index 68736c6b..7db33dfb 100644
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/json/JsonPatch.kt
+++ b/src/main/kotlin/ru/dbotthepony/kstarbound/json/JsonPatch.kt
@@ -5,11 +5,13 @@ import com.google.gson.JsonElement
 import com.google.gson.JsonNull
 import com.google.gson.JsonObject
 import com.google.gson.JsonSyntaxException
+import com.google.gson.stream.JsonReader
 import kotlinx.coroutines.future.await
 import org.apache.logging.log4j.LogManager
 import ru.dbotthepony.kommons.gson.get
 import ru.dbotthepony.kstarbound.IStarboundFile
 import ru.dbotthepony.kstarbound.Starbound
+import java.util.concurrent.CompletableFuture
 
 enum class JsonPatch(val key: String) {
 	TEST("test") {
@@ -165,5 +167,25 @@ enum class JsonPatch(val key: String) {
 
 			return base
 		}
+
+		suspend fun applyAsync(reader: CompletableFuture<JsonReader>, source: Collection<IStarboundFile>?): JsonElement {
+			source ?: return Starbound.ELEMENTS_ADAPTER.read(reader.await())
+			val loaded = source.map { it.asyncJsonReader() }
+			var base = Starbound.ELEMENTS_ADAPTER.read(reader.await())
+			val itr = source.iterator()
+
+			for (patch in loaded) {
+				val file = itr.next()
+				val read = Starbound.ELEMENTS_ADAPTER.read(patch.await())
+
+				if (read !is JsonArray) {
+					LOGGER.error("$patch root element is not an array")
+				} else {
+					base = apply(base, read, file)
+				}
+			}
+
+			return base
+		}
 	}
 }