diff --git a/match-making/constants/matchmake_system_type.go b/match-making/constants/matchmake_system_type.go
new file mode 100644
index 00000000..7e9c476f
--- /dev/null
+++ b/match-making/constants/matchmake_system_type.go
@@ -0,0 +1,24 @@
+package constants
+
+// MatchmakeSystemType represents the method of matchmaking being used
+type MatchmakeSystemType uint32
+
+const (
+	// MatchmakeSystemTypeInvalid indicates an invalid value
+	MatchmakeSystemTypeInvalid MatchmakeSystemType = iota
+
+	// MatchmakeSystemTypeAnybody indicates that anybody can join the MatchmakeSession
+	MatchmakeSystemTypeAnybody
+
+	// MatchmakeSystemTypeFriends indicates that only friends of the owner can join the MatchmakeSession
+	MatchmakeSystemTypeFriends
+
+	// MatchmakeSystemTypeFriendsInvite indicates that only friends of the owner with invitation can join the MatchmakeSession
+	MatchmakeSystemTypeFriendsInvite
+
+	// MatchmakeSystemTypeFriends indicates that anybody with an invitation can join the MatchmakeSession
+	MatchmakeSystemTypeInvite
+
+	// MatchmakeSystemTypeFriends indicates that the MatchmakeSession is part of a PersistentGathering
+	MatchmakeSystemTypePersistentGathering
+)
diff --git a/match-making/constants/persistent_gathering_type.go b/match-making/constants/persistent_gathering_type.go
new file mode 100644
index 00000000..59f43c45
--- /dev/null
+++ b/match-making/constants/persistent_gathering_type.go
@@ -0,0 +1,15 @@
+package constants
+
+// PersistentGatheringType indicates the type of PersistentGathering
+type PersistentGatheringType uint32
+
+const (
+	// PersistentGatheringTypeOpen indicates that the PersistentGathering is open to everyone
+	PersistentGatheringTypeOpen PersistentGatheringType = iota
+
+	// PersistentGatheringTypePasswordLocked indicates that the PersistentGathering requires a password
+	PersistentGatheringTypePasswordLocked
+
+	// PersistentGatheringTypeOfficial indicates that the PersistentGathering is official
+	PersistentGatheringTypeOfficial
+)