diff --git a/format.txt b/format.txt
index 6de387b..27b920b 100644
--- a/format.txt
+++ b/format.txt
@@ -27,4 +27,13 @@ next zar = <zar> + 0x1A + unk5
 
 <world>
     uint32_t uncompressed_size;
-    uint32_t uncompressed_size;
\ No newline at end of file
+    uint32_t uncompressed_size;
+
+<sgd>
+    uint8_t unk1[0x48]
+    uint32_t N - num strings
+    FString[N]
+    N times
+        uint32_t ?
+        uint32_t M - num strings
+        FString[M]
\ No newline at end of file