diff --git a/src/saland/Game.cpp b/src/saland/Game.cpp
index 7341a8c..f6cd1db 100644
--- a/src/saland/Game.cpp
+++ b/src/saland/Game.cpp
@@ -560,7 +560,7 @@ void Game::Update() {
 		}
 		Monster* monster = dynamic_cast<Monster*> (entity.get());
 		if (monster) {
-			UpdateMonster(monster);
+			UpdateMonster(monster, deltaTime);
 		}
 		MiscItem* item = dynamic_cast<MiscItem*> (entity.get());
 		if (item) {
diff --git a/src/saland/GameUpdates.cpp b/src/saland/GameUpdates.cpp
index dfeba10..ddea0ee 100644
--- a/src/saland/GameUpdates.cpp
+++ b/src/saland/GameUpdates.cpp
@@ -80,11 +80,36 @@ void UpdateHuman(Human* entity, float fDeltaTime) {
 	entity->Y = place.y*pixel2unit;
 }
 
-void UpdateMonster(Monster* entity) {
+static void MonsterThink(Monster* entity) {
+	if (rand()%2==0) {
+		//1 in 2 chance of changing direction
+		if (rand()%2==0) {
+			entity->moveX = 0.1f;
+		}
+		else {
+			entity->moveX = -0.1f;
+		}
+		if (rand()%2 == 0) {
+			entity->moveY = 0.1f;
+		}
+		else {
+			entity->moveY = -0.1f;
+		}
+	}
+}
+
+void UpdateMonster(Monster* entity, float fDeltaTime) {
 	SetCreatureMovementEntity(entity, entity->moveX, entity->moveY);
 	b2Vec2 place = entity->body->GetPosition();
 	entity->X = place.x*pixel2unit;
 	entity->Y = place.y*pixel2unit;
+	if (entity->aiNextThink > 0.0) {
+		entity->aiNextThink -= fDeltaTime;
+	}
+	else {
+		entity->aiNextThink = 2000.0f;
+		MonsterThink(entity);
+	}
 	if (entity->health <= 0.0) {
 		entity->removeMe = true;
 	}
diff --git a/src/saland/GameUpdates.hpp b/src/saland/GameUpdates.hpp
index c8c5f01..e164aa6 100644
--- a/src/saland/GameUpdates.hpp
+++ b/src/saland/GameUpdates.hpp
@@ -31,7 +31,7 @@ https://github.com/sago007/saland
 
 void ProjectileHit(Projectile* p, Placeable* target);
 void UpdateHuman(Human* entity, float fDeltaTime);
-void UpdateMonster(Monster* entity);
+void UpdateMonster(Monster* entity, float fDeltaTime);
 void UpdateProjectile(Projectile* entity, float fDeltaTime);
 
 #endif /* GAMEUPDATES_HPP */
diff --git a/src/saland/model/placeables.hpp b/src/saland/model/placeables.hpp
index 07b0a9d..c0d4948 100644
--- a/src/saland/model/placeables.hpp
+++ b/src/saland/model/placeables.hpp
@@ -80,6 +80,9 @@ public:
 class Monster : public Creature {
 public:
 	std::string race = "bat";
+	float speed = 1.0f;
+	// AI logic:
+	float aiNextThink = 0.0;
 };
 
 class Projectile : public Placeable {