diff --git a/include/cstrike/Definitions/Const.h b/include/cstrike/Definitions/Const.h
new file mode 100644
index 0000000..2a47389
--- /dev/null
+++ b/include/cstrike/Definitions/Const.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#define LIFE_ALIVE 0
+#define LIFE_DYING 1
+#define LIFE_DEAD 2
+#define LIFE_RESPAWNABLE 3
+#define LIFE_DISCARDBODY 4
+
+#define MAX_EDICT_BITS 11
+#define NUM_ENT_ENTRY_BITS (MAX_EDICT_BITS + 1)
+#define NUM_ENT_ENTRIES (1 << NUM_ENT_ENTRY_BITS)
+#define ENT_ENTRY_MASK (NUM_ENT_ENTRIES - 1)
+#define INVALID_EHANDLE_INDEX 0xFFFFFFFF
+
+#define NUM_SERIAL_NUM_BITS (32 - NUM_ENT_ENTRY_BITS)
\ No newline at end of file