diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 650490d..370f3ee 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -78,7 +78,10 @@ void Bullet::OnHit(std::vector<Entity*>& objects)
         switch (target->entity_type) {
         case ET_Player:
             {
-
+                Human* hum = (Human*)target;
+                if (!hum->dead) {
+                    hum->DecHP(10, 0, "");
+                }
             }
             break;
         case ET_Obstacle:
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 9b22454..10be36d 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -264,7 +264,7 @@ void Human::UpdatePoisoning()
             health = std::max(0.0f, health - room->gas_data.old_area_meta->i->hurt());
         }
         if (health <= 0.0f) {
-            dead = true;
+            BeKill(-1, "安全区");
             downed = true;
             poisoning_time = 0;
             break;
@@ -376,8 +376,22 @@ void Human::FillSMGameOver(cs::SMGameOver& msg)
 
 void Human::BeKill(int killer_id, const std::string& killer_name)
 {
-    stats.killer_id = killer_id;
-    stats.killer_name = killer_name;
-    dead = true;
-    health = 0.0f;
+    if (!dead) {
+        stats.killer_id = killer_id;
+        stats.killer_name = killer_name;
+        dead = true;
+        health = 0.0f;
+        dead_frameno = room->frame_no;
+        send_gameover = true;
+        --room->alive_count_;
+        SyncAroundPlayers();
+    }
+}
+
+void Human::DecHP(float dec_hp, int killer_id, const std::string& killer_name)
+{
+    health = std::min(0.0f, health - dec_hp);
+    if (health <= 0.0001f) {
+        BeKill(killer_id, killer_name);
+    }
 }
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index ff5bfb7..3bbb177 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -84,6 +84,8 @@ class Human : public Entity
     HumanFrameData frame_data;
     PlayerStats stats;
 
+    bool send_gameover = false;
+
     std::set<Entity*> new_objects;
     std::set<Entity*> part_objects;
 
@@ -112,6 +114,7 @@ class Human : public Entity
     void ResetAction();
     void FillSMGameOver(cs::SMGameOver& msg);
     void BeKill(int killer_id, const std::string& killer_name);
+    void DecHP(float dec_hp, int killer_id, const std::string& killer_name);
 
 private:
     CircleCollider* self_collider_ = nullptr;
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index 1872751..0fbe070 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -77,6 +77,9 @@ void Player::Update(int delta_time)
         }
         MakeUpdateMsg();
         SendNotifyMsg(*update_msg);
+        if (send_gameover) {
+            UpdateGameOver();
+        }
         {
             if (!new_objects.empty()) {
                 new_objects.clear();
@@ -254,13 +257,18 @@ void Player::UpdateUseItemIdx()
 
 void Player::UpdateSpectate()
 {
-    stats.killer_id = entity_uniid;
-    stats.killer_name = name;
-    dead = true;
-    health = 0.0f;
+    BeKill(entity_uniid, name);
     spectate = false;
 }
 
+void Player::UpdateGameOver()
+{
+    cs::SMGameOver msg;
+    FillSMGameOver(msg);
+    SendNotifyMsg(msg);
+    send_gameover = false;
+}
+
 void Player::Shot()
 {
     if (!curr_weapon->meta) {
diff --git a/server/gameserver/player.h b/server/gameserver/player.h
index f9623fe..6133f0e 100644
--- a/server/gameserver/player.h
+++ b/server/gameserver/player.h
@@ -77,6 +77,7 @@ class Player : public Human
     void UpdateCancelAction();
     void UpdateUseItemIdx();
     void UpdateSpectate();
+    void UpdateGameOver();
     void Shot();
     void ProcInteraction();
     void ObstacleInteraction(Obstacle* entity);
diff --git a/server/tools/protobuild/cs_msgid.proto b/server/tools/protobuild/cs_msgid.proto
index 0189a56..cc41568 100644
--- a/server/tools/protobuild/cs_msgid.proto
+++ b/server/tools/protobuild/cs_msgid.proto
@@ -24,4 +24,5 @@ enum SMMessageId_e
     _SMPickup = 1006;
     _SMVoiceNotify = 1007;
     _SMDisconnectNotify = 1008;
+    _SMGameOver = 1009;
 }
diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index 900dec0..1ba1159 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -490,7 +490,7 @@ message MFPlayerStats
     optional int32 score = 11; //积分
 
     optional bool dead = 5; //是否已死亡
-    optional int32 killer_id = 7; //杀手id(自杀时为自己)
+    optional int32 killer_id = 7; //杀手id(自杀时为自己) 特殊id: -1:倒在安全区
     optional string killer_name = 40; //杀手名称
 
     optional string account_id = 21; //账号id