diff --git a/src/actor.rs b/src/actor.rs
index 7daa8a9..d4d7779 100644
--- a/src/actor.rs
+++ b/src/actor.rs
@@ -41,10 +41,12 @@ pub struct SendMessageEvent {
 pub struct ChatScriptEvent {
     name: String,
     param: String,
+    param2: String,
 }
 
 #[derive(Component)]
 pub struct Actor {
+    pub id: String,
     pub hp: f32,
     pub m: f32, // mass
     pub v: Vec3, // velocity
@@ -55,6 +57,7 @@ pub struct Actor {
 impl Default for Actor {
     fn default() -> Self {
         Self {
+            id: "".to_string(),
             hp: 100.0,
             m: 100.0,
             v: Vec3::ZERO,
@@ -340,6 +343,7 @@ pub fn handle_send_messages(
                 ew_chatscript.send(ChatScriptEvent {
                     name: branch.script.clone(),
                     param: branch.script_parameter.clone(),
+                    param2: branch.script_parameter2.clone(),
                 });
             }
         }
@@ -416,6 +420,7 @@ pub fn handle_conversations(
             ew_chatscript.send(ChatScriptEvent {
                 name: branch.script.clone(),
                 param: branch.script_parameter.clone(),
+                param2: branch.script_parameter2.clone(),
             });
         }
     }
@@ -423,13 +428,37 @@ pub fn handle_conversations(
 
 pub fn handle_chat_scripts(
     mut er_chatscript: EventReader<ChatScriptEvent>,
+    mut q_actor: Query<(&mut Actor, &mut Suit), Without<Player>>,
     mut q_player: Query<(&mut Actor, &mut Suit), With<Player>>,
 ) {
     for script in er_chatscript.read() {
         match script.name.as_str() {
-            "refilloxygen" => if let Ok(amount) = script.param.parse::<f32>() {
+            "refilloxygen" => if let Ok(mut amount) = script.param.parse::<f32>() {
                 for (mut _actor, mut suit) in q_player.iter_mut() {
-                    suit.oxygen = (suit.oxygen + amount).clamp(0.0, suit.oxygen_max);
+                    if script.param2.is_empty() {
+                        suit.oxygen = (suit.oxygen + amount).clamp(0.0, suit.oxygen_max);
+                    }
+                    else {
+                        let mut found_other = false;
+                        info!("param2={}", script.param2);
+                        for (other_actor, mut other_suit) in q_actor.iter_mut() {
+                            if !other_actor.id.is_empty() {
+                                info!("ID={}", other_actor.id);
+                            }
+                            if other_actor.id == script.param2 {
+                                found_other = true;
+                                amount = amount
+                                    .clamp(0.0, other_suit.oxygen)
+                                    .clamp(0.0, suit.oxygen_max - suit.oxygen);
+                                other_suit.oxygen = other_suit.oxygen - amount;
+                                suit.oxygen = (suit.oxygen + amount).clamp(0.0, suit.oxygen_max);
+                                break;
+                            }
+                        }
+                        if !found_other {
+                            error!("Script error: could not find actor with ID `{}`", script.param2);
+                        }
+                    }
                 }
             } else {
                 error!("Invalid parameter for command `{}`: `{}`", script.name, script.param);
diff --git a/src/defs.txt b/src/defs.txt
index b7d68b1..de3f4e9 100644
--- a/src/defs.txt
+++ b/src/defs.txt
@@ -122,8 +122,10 @@ actor 10 0 70 suit
             lvl info
 
 actor -300 0 40 suit
+    id drifter
     name "Drifter"
     chatid drifter
+    oxygen 0.08
     chat drifter
         name "Drifter"
         msg 5 INIT noresponse "Requesting permission to communicate..."
@@ -134,7 +136,7 @@ actor -300 0 40 suit
             lvl info
         choice 0 outcold EXIT "Damn, it's gotta be moldy in that suit. How long has it been drifting?"
         choice 0 outcold EXIT "Harvest some oxygen"
-            script refilloxygen 0.08
+            script refilloxygen 1 drifter
         msg 0 outcold EXIT ""
 
 chat error
diff --git a/src/world.rs b/src/world.rs
index f17a6d8..5ec6427 100644
--- a/src/world.rs
+++ b/src/world.rs
@@ -231,6 +231,7 @@ struct ParserState {
     chat: String,
 
     // Actor fields
+    id: String,
     pos: Vec3,
     model: String,
     model_scale: f32,
@@ -245,6 +246,7 @@ struct ParserState {
     thrust_sideways: f32,
     thrust_back: f32,
     reaction_wheels: f32,
+    oxygen: f32,
 
     // Chat fields
     delay: f64,
@@ -267,6 +269,7 @@ impl Default for ParserState {
             name: "NONAME".to_string(),
             chat: "".to_string(),
 
+            id: "".to_string(),
             pos: Vec3::new(0.0, 0.0, 0.0),
             model: "".to_string(),
             model_scale: 1.0,
@@ -281,6 +284,7 @@ impl Default for ParserState {
             thrust_sideways: default_engine.thrust_forward,
             thrust_back: default_engine.thrust_back,
             reaction_wheels: default_engine.reaction_wheels,
+            oxygen: nature::OXY_D,
 
             delay: 0.0,
             text: "".to_string(),
@@ -339,6 +343,7 @@ impl ParserState {
     fn spawn_actor(&mut self, commands: &mut Commands, asset_server: &Res<AssetServer>) {
         let component_actor = actor::Actor {
             angular_momentum: self.angular_momentum,
+            id: self.id.clone(),
             ..default()
         };
         let component_lifeform = actor::LifeForm::default();
@@ -353,7 +358,11 @@ impl ParserState {
             thrust_sideways: self.thrust_sideways,
             reaction_wheels: self.reaction_wheels,
         };
-        let component_suit = actor::Suit::default();
+        let component_suit = actor::Suit {
+            oxygen: self.oxygen,
+            oxygen_max: nature::OXY_D,
+            ..default()
+        };
         let component_model = SceneBundle {
             transform: Transform {
                 translation: self.pos,
@@ -367,7 +376,7 @@ impl ParserState {
         // TODO: is there a more dynamic way to construct this...?
         info!("Spawning actor {} with model {} at {}/{}/{}",
               self.name, self.model, self.pos.x, self.pos.y, self.pos.z);
-        if self.is_alive {
+        if self.is_lifeform {
             if !self.chat.is_empty() {
                 commands.spawn((
                     component_actor,
@@ -484,6 +493,9 @@ pub fn load_defs(
                     continue;
                 }
             }
+            ["id", id] => {
+                state.id = id.to_string();
+            }
             ["alive", "yes"] => {
                 state.is_alive = true;
                 state.is_lifeform = true;
@@ -492,6 +504,17 @@ pub fn load_defs(
             ["vehicle", "yes"] => {
                 state.is_vehicle = true;
             }
+            ["oxygen", amount] => {
+                if let Ok(amount) = amount.parse::<f32>() {
+                    state.is_lifeform = true;
+                    state.is_suited = true;
+                    state.oxygen = amount;
+                }
+                else {
+                    error!("Can't parse float: {line}");
+                    continue;
+                }
+            }
             ["pronoun", pronoun] => {
                 state.pronoun = pronoun.to_string();
             }