diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/server/StarboundServer.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/server/StarboundServer.kt
index 27d29ca2..94a34ada 100644
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/server/StarboundServer.kt
+++ b/src/main/kotlin/ru/dbotthepony/kstarbound/server/StarboundServer.kt
@@ -25,10 +25,14 @@ import ru.dbotthepony.kstarbound.defs.world.WorldTemplate
 import ru.dbotthepony.kstarbound.fromJson
 import ru.dbotthepony.kstarbound.json.readJsonElement
 import ru.dbotthepony.kstarbound.json.readJsonElementInflated
+import ru.dbotthepony.kstarbound.json.readJsonElementZstd
 import ru.dbotthepony.kstarbound.json.readJsonObject
+import ru.dbotthepony.kstarbound.json.readJsonObjectZstd
 import ru.dbotthepony.kstarbound.json.writeJsonElement
 import ru.dbotthepony.kstarbound.json.writeJsonElementDeflated
+import ru.dbotthepony.kstarbound.json.writeJsonElementZstd
 import ru.dbotthepony.kstarbound.json.writeJsonObject
+import ru.dbotthepony.kstarbound.json.writeJsonObjectZstd
 import ru.dbotthepony.kstarbound.math.vector.Vector2i
 import ru.dbotthepony.kstarbound.server.world.LegacyWorldStorage
 import ru.dbotthepony.kstarbound.server.world.NativeLocalWorldStorage
@@ -159,7 +163,7 @@ sealed class StarboundServer(val root: File) : BlockableEventLoop("Server thread
 
 			lookupClientContext.executeQuery().use {
 				if (it.next()) {
-					it.getBytes(1).readJsonObject()
+					it.getBytes(1).readJsonObjectZstd()
 				} else {
 					null
 				}
@@ -168,9 +172,10 @@ sealed class StarboundServer(val root: File) : BlockableEventLoop("Server thread
 	}
 
 	fun writeClientContext(uuid: UUID, context: JsonObject): CompletableFuture<*> {
+		val compressed = context.writeJsonObjectZstd()
 		return supplyAsync {
 			writeClientContext.setString(1, uuid.toStarboundString())
-			writeClientContext.setBytes(2, context.writeJsonObject())
+			writeClientContext.setBytes(2, compressed)
 			writeClientContext.execute()
 		}
 	}
@@ -241,7 +246,7 @@ sealed class StarboundServer(val root: File) : BlockableEventLoop("Server thread
 
 			lookupSystemWorld.executeQuery().use {
 				if (it.next()) {
-					it.getBytes(1).readJsonElementInflated()
+					it.getBytes(1).readJsonElementZstd()
 				} else {
 					null
 				}
@@ -250,11 +255,13 @@ sealed class StarboundServer(val root: File) : BlockableEventLoop("Server thread
 	}
 
 	fun writeServerWorldData(pos: Vector3i, data: JsonElement) {
+		val compressed = data.writeJsonElementZstd()
+
 		execute {
 			writeSystemWorld.setInt(1, pos.x)
 			writeSystemWorld.setInt(2, pos.y)
 			writeSystemWorld.setInt(3, pos.z)
-			writeSystemWorld.setBytes(4, data.writeJsonElementDeflated())
+			writeSystemWorld.setBytes(4, compressed)
 
 			writeSystemWorld.execute()
 		}