diff --git a/Map.cpp b/Map.cpp
index a0a505d..67f53d2 100644
--- a/Map.cpp
+++ b/Map.cpp
@@ -187,22 +187,46 @@ void Map::createRoom(bool first, int x1, int y1, int x2, int y2, bool withActors
 void Map::addMonster(int x, int y) {
     TCODRandom* rng = TCODRandom::getInstance();
     if (rng->getInt(0, 100) < 80) {
-        // create an orc
-        Actor* orc = new Actor(x, y, "o", "orc",
-            engine->gui->green);
-        orc->destructible = new MonsterDestructible(10, 0, "dead orc", 5);
-        orc->attacker = new Attacker(3);
-        orc->ai = new MonsterAi();
-        engine->actors.push(orc);
+        // create weak monster
+        if (engine->level < 5) {
+            // create an rat
+            Actor* orc = new Actor(x, y, "r", "rat",
+                engine->gui->purple);
+            orc->destructible = new MonsterDestructible(10, 0, "dead rat", 5);
+            orc->attacker = new Attacker(3);
+            orc->ai = new MonsterAi();
+            engine->actors.push(orc);
+        }
+        else {
+            // create an orc
+            Actor* orc = new Actor(x, y, "o", "orc",
+                engine->gui->green);
+            orc->destructible = new MonsterDestructible(15, 0, "dead orc", 7);
+            orc->attacker = new Attacker(4.5f);
+            orc->ai = new MonsterAi();
+            engine->actors.push(orc);
+        }
     }
     else {
-        // create a troll
-        Actor* troll = new Actor(x, y, "T", "troll",
-            engine->gui->lightGreen);
-        troll->destructible = new MonsterDestructible(16, 1, "troll carcass", 10);
-        troll->attacker = new Attacker(4);
-        troll->ai = new MonsterAi();
-        engine->actors.push(troll);
+		// create strong monster
+        if (engine->level < 5) {
+            // create an snake
+            Actor* orc = new Actor(x, y, "S", "snake",
+                engine->gui->green);
+            orc->destructible = new MonsterDestructible(16, 0, "dead snake", 10);
+            orc->attacker = new Attacker(4);
+            orc->ai = new MonsterAi();
+            engine->actors.push(orc);
+        }
+        else {
+            // create a troll
+            Actor* troll = new Actor(x, y, "T", "troll",
+                engine->gui->lightGreen);
+            troll->destructible = new MonsterDestructible(20, 1, "troll carcass", 15);
+            troll->attacker = new Attacker(7);
+            troll->ai = new MonsterAi();
+            engine->actors.push(troll);
+        }
     }
 }