diff --git a/src/game/Towers.cpp b/src/game/Towers.cpp
index 66f2393..a8ce995 100644
--- a/src/game/Towers.cpp
+++ b/src/game/Towers.cpp
@@ -86,8 +86,8 @@ const std::map<std::pair<TowerType, TowerLevel>, TowerStats> TowerConstants = {
     {{TowerType::Poison, {3, TowerPath::Top}}, {6, 0, 13}},
     {{TowerType::Poison, {4, TowerPath::Top}}, {5, 0, 15}},
 
-    {{TowerType::Poison, {3, TowerPath::Bottom}}, {5, 0, 13}},
-    {{TowerType::Poison, {4, TowerPath::Bottom}}, {6, 0, 15}},
+    {{TowerType::Poison, {3, TowerPath::Bottom}}, {5, 10, 13}},
+    {{TowerType::Poison, {4, TowerPath::Bottom}}, {6, 20, 15}},
 
     //-----------------------------------------------------------------
 
@@ -248,7 +248,40 @@ void MageTower::tick(std::uint64_t delta, World* world) {
 }
 
 void PoisonTower::tick(std::uint64_t delta, World* world) {
+    if (m_Timer.update(delta)) {
+        for (MobPtr mob : world->getMobList()) {
+            if (isMobInRange(mob)) {
+                if(getLevel().getPath() == TowerPath::Bottom){
+                    mob->damage(getStats()->getDamage(), this);
+                }else{
+                    float durationSec;
+                    switch(getLevel().getLevel()){
+                        case 1:
+                            durationSec = 5;
+                            break;
 
+                        case 2:
+                            durationSec = 15;
+                            break;
+
+                        case 3:
+                            durationSec = 30;
+                            break;
+
+                        case 4:
+                            durationSec = 1e10; // about 3 million hours. It should be enough
+                            break;
+
+                        default:
+                            durationSec = 0; // how did we get there ?
+                            break;
+                    }
+                    mob->addEffect(EffectType::Poison, durationSec, this);
+                }
+                m_Timer.applyCooldown();
+            }
+        }
+    }
 }
 
 void QuakeTower::tick(std::uint64_t delta, World* world) {