diff --git a/zdefs.acs b/zdefs.acs
index 4b14847..c607821 100644
--- a/zdefs.acs
+++ b/zdefs.acs
@@ -783,6 +783,11 @@
 #DEFINE AAPTR_FRIENDPLAYER 0x4000
 #DEFINE AAPTR_GET_LINETARGET 0x8000
 
+// [AK] Actor pointers used exclusively for GAMEEVENT_ACTOR_DAMAGED
+#DEFINE AAPTR_DAMAGE_SOURCE 0x10000000
+#DEFINE AAPTR_DAMAGE_INFLICTOR 0x40000000
+#DEFINE AAPTR_DAMAGE_TARGET 0x80000000
+
 // Actor pointer operation flags
 
 #DEFINE PTROP_UNSAFETARGET 1
@@ -910,6 +915,28 @@
 #define DB_ORDER_ASC			0
 #define DB_ORDER_DESC			1
 
+// Zandronum gamemode states ------------------------------------------------
+#define GAMESTATE_UNSPECIFIED		-1
+#define GAMESTATE_WAITFORPLAYERS	0
+#define GAMESTATE_COUNTDOWN		1
+#define GAMESTATE_INPROGRESS		2
+#define GAMESTATE_INRESULTSEQUENCE	3
+
+// Zandronum EVENT script types ---------------------------------------------
+#define GAMEEVENT_PLAYERFRAGS		0
+#define GAMEEVENT_MEDALS		1
+#define GAMEEVENT_CAPTURES		2
+#define GAMEEVENT_TOUCHES		3
+#define GAMEEVENT_RETURNS		4
+#define GAMEEVENT_ROUND_STARTS		5
+#define GAMEEVENT_ROUND_ENDS		6
+#define GAMEEVENT_ROUND_ABORTED		7
+#define GAMEEVENT_CHAT			8
+#define GAMEEVENT_PLAYERCONNECT		9
+#define GAMEEVENT_ACTOR_SPAWNED		10
+#define GAMEEVENT_ACTOR_DAMAGED		11
+#define GAMEEVENT_ACTOR_ARMORDAMAGED	12
+
 // Events when you have input grabbed
 
 #define EV_KeyDown				1	// data1: unshifted ASCII, data2: shifted ASCII
@@ -1169,6 +1196,41 @@
 #define AMLS_UnexploredSecret	12
 #define AMLS_Portal		13
 
+// [TP] For GetTimeProperty
+#define TM_SECOND 0
+#define TM_MINUTE 1
+#define TM_HOUR 2
+#define TM_DAY 3
+#define TM_MONTH 4
+#define TM_YEAR 5
+#define TM_WEEKDAY 6
+
+// [AK] For SetGamemodeLimit
+#define GAMELIMIT_FRAGS 0
+#define GAMELIMIT_TIME 1
+#define GAMELIMIT_POINTS 2
+#define GAMELIMIT_DUELS 3
+#define GAMELIMIT_WINS 4
+#define GAMELIMIT_WAVES 5
+
+// [AK] For SetPlayerScore and GetPlayerScore
+#define SCORE_FRAGS 0
+#define SCORE_POINTS 1
+#define SCORE_WINS 2
+#define SCORE_DEATHS 3
+#define SCORE_KILLS 4
+#define SCORE_ITEMS 5
+#define SCORE_SECRETS 6
+#define SCORE_SPREAD 7
+#define SCORE_RANK 8
+
+// [AK] For GetMapRotationInfo
+#define MAPROTATION_Name 0
+#define MAPROTATION_LumpName 1
+#define MAPROTATION_Used 2
+#define MAPROTATION_MinPlayers 3
+#define MAPROTATION_MaxPlayers 4
+
 // Lump reading stuff.
 #define LUMP_OPEN_FULLPATH 1