diff --git a/zpak001.pk3dir/def/npcs.def b/zpak001.pk3dir/def/npcs.def
new file mode 100644
index 0000000..fb9c591
--- /dev/null
+++ b/zpak001.pk3dir/def/npcs.def
@@ -0,0 +1,4 @@
+include "npcs/alyx.def"
+include "npcs/barney.def"
+include "npcs/gman.def"
+include "npcs/zombie.def"
diff --git a/zpak001.pk3dir/def/npcs/alyx.def b/zpak001.pk3dir/def/npcs/alyx.def
new file mode 100644
index 0000000..8e62a09
--- /dev/null
+++ b/zpak001.pk3dir/def/npcs/alyx.def
@@ -0,0 +1,15 @@
+entityDef npc_alyx
+{
+	"spawnclass"		"NSTalkMonster"
+	"model"		"models/alyx.mdl"
+	"netname"		"Alyx"
+	"health"		"200"
+	"mins"			"-16 -16 0"
+	"maxs"			"16 16 72"
+	"eye_height"		"64"
+	"team"			"0"
+	"propdata"		"actor_human"
+
+	"speed_walk"		"77"
+	"speed_run"		"364"
+}
\ No newline at end of file
diff --git a/zpak001.pk3dir/def/npcs/barney.def b/zpak001.pk3dir/def/npcs/barney.def
new file mode 100644
index 0000000..db6d94a
--- /dev/null
+++ b/zpak001.pk3dir/def/npcs/barney.def
@@ -0,0 +1,15 @@
+entityDef npc_barney
+{
+	"spawnclass"		"NSTalkMonster"
+	"model"		"models/barney.mdl"
+	"netname"		"Barney"
+	"health"		"200"
+	"mins"			"-16 -16 0"
+	"maxs"			"16 16 72"
+	"eye_height"		"64"
+	"team"			"0"
+	"propdata"		"actor_human"
+
+	"speed_walk"		"77"
+	"speed_run"		"364"
+}
\ No newline at end of file
diff --git a/zpak001.pk3dir/def/npcs/gman.def b/zpak001.pk3dir/def/npcs/gman.def
new file mode 100644
index 0000000..d8548d3
--- /dev/null
+++ b/zpak001.pk3dir/def/npcs/gman.def
@@ -0,0 +1,15 @@
+entityDef npc_gman
+{
+	"spawnclass"		"NSTalkMonster"
+	"model"		"models/gman.mdl"
+	"netname"		"G-Man"
+	"health"		"0" // he can't die, he's the G-Man!
+	"mins"			"-16 -16 0"
+	"maxs"			"16 16 72"
+	"eye_height"		"64"
+	"team"			"0"
+	"propdata"		"actor_human"
+
+	"speed_walk"		"77"
+	"speed_run"		"364"
+}
\ No newline at end of file
diff --git a/zpak001.pk3dir/def/npcs/zombie.def b/zpak001.pk3dir/def/npcs/zombie.def
new file mode 100644
index 0000000..bb872c6
--- /dev/null
+++ b/zpak001.pk3dir/def/npcs/zombie.def
@@ -0,0 +1,35 @@
+entityDef npc_zombie
+{
+	"spawnclass"		"NSMonster"
+	"model"		"models/zombie/classic.mdl"
+	"netname"		"Zombie"
+	"health"		"skill:zombie_health"
+	"mins"		"-16 -16 0"
+	"maxs"		"16 16 72"
+	"eye_height"		"64"
+	"team"		"2"
+	"propdata"		"actor_alien"
+	"speed_walk"		"72"
+	"speed_run"		"72"
+
+	"def_attack_melee"	"melee_zombie_stab"
+	"melee_range"		"96"
+
+
+	"snd_sight"		"monster_zombie.alert"
+	"snd_idle"		"monster_zombie.idle"
+	"snd_pain"		"monster_zombie.pain"
+	"snd_death"		""
+	"snd_melee_attack"	"monster_zombie.attack"
+	"snd_melee_attack_hit"	"monster_zombie.attackhit"
+	"snd_melee_attack_miss"	"monster_zombie.attackmiss"
+	"snd_thud"		"monster_generic.thud"
+}
+
+entityDef melee_zombie_stab
+{
+	"damage"	"skill:zombie_dmg_one_slash"
+	"delay"	"0.25f"
+	"wait"	"0.5"
+	"attempts"	"2"
+}