diff --git a/84_Super_Star_Trek/rust/src/main.rs b/84_Super_Star_Trek/rust/src/main.rs
index 589e43e0..2afded1c 100644
--- a/84_Super_Star_Trek/rust/src/main.rs
+++ b/84_Super_Star_Trek/rust/src/main.rs
@@ -1,5 +1,6 @@
 use std::process::exit;
 
+use input::prompt;
 use model::{Galaxy, systems};
 
 mod input;
@@ -12,6 +13,8 @@ fn main() {
     .expect("Error setting Ctrl-C handler");
 
     let mut galaxy = Galaxy::generate_new();
+    let initial_klingons = galaxy.remaining_klingons();
+    let initial_stardate = galaxy.stardate;
     
     view::enterprise();
     view::intro(&galaxy);
@@ -36,12 +39,21 @@ fn main() {
             _ => view::print_command_help()
         }
 
-        if galaxy.enterprise.destroyed || galaxy.enterprise.check_stranded() {
+        if galaxy.enterprise.destroyed || galaxy.enterprise.check_stranded() || galaxy.stardate >= galaxy.final_stardate {
             view::end_game_failure(&galaxy);
-            // todo check if can restart
+            if galaxy.remaining_klingons() > 0 && galaxy.remaining_starbases() > 0 && galaxy.stardate < galaxy.final_stardate {
+                view::replay();
+                let result = prompt("");
+                if result.len() > 0 && result[0].to_uppercase() == "AYE" {
+                    galaxy.enterprise = Galaxy::new_captain(&galaxy.quadrants);
+                    continue;
+                }
+            }
+            break;
+        } else if galaxy.remaining_klingons() == 0 {
+            let efficiency = 1000.0 * f32::powi(initial_klingons as f32 / (galaxy.stardate - initial_stardate), 2);
+            view::congratulations(efficiency);
             break;
         }
-
-        // todo check for victory
     }
 }
diff --git a/84_Super_Star_Trek/rust/src/model.rs b/84_Super_Star_Trek/rust/src/model.rs
index 151b85d3..2985f28a 100644
--- a/84_Super_Star_Trek/rust/src/model.rs
+++ b/84_Super_Star_Trek/rust/src/model.rs
@@ -101,7 +101,7 @@ impl Enterprise {
     }
 
     pub fn check_stranded(&self) -> bool {
-        if self.total_energy < 10 || (self.total_energy - self.shields < 10 && self.damaged.contains_key(systems::SHIELD_CONTROL)) {
+        if self.total_energy < 10 || (self.shields + 10 > self.total_energy && self.damaged.contains_key(systems::SHIELD_CONTROL)) {
             view::stranded();
             return true;
         }
@@ -213,28 +213,35 @@ impl Galaxy {
         let quadrants = Self::generate_quadrants();
 
         let mut rng = rand::thread_rng();
-        let enterprise_quadrant = Pos(rng.gen_range(0..8), rng.gen_range(0..8));
-        let enterprise_sector = quadrants[enterprise_quadrant.as_index()].find_empty_sector();
         let stardate = rng.gen_range(20..=40) as f32 * 100.0;
 
+        let enterprise = Self::new_captain(&quadrants);
+
         let mut scanned = HashSet::new();
-        scanned.insert(enterprise_quadrant);
+        scanned.insert(enterprise.quadrant);
 
         Galaxy { 
             stardate,
             final_stardate: stardate + rng.gen_range(25..=35) as f32,
             quadrants: quadrants, 
             scanned: scanned,
-            enterprise: Enterprise { 
-                destroyed: false,
-                damaged: HashMap::new(),
-                quadrant: enterprise_quadrant, 
-                sector: enterprise_sector,
-                photon_torpedoes: MAX_PHOTON_TORPEDOES,
-                total_energy: MAX_ENERGY,
-                shields: 0 }
+            enterprise: enterprise
         }
-    }    
+    } 
+
+    pub fn new_captain(quadrants: &Vec<Quadrant>) -> Enterprise {
+        let mut rng = rand::thread_rng();
+        let enterprise_quadrant = Pos(rng.gen_range(0..8), rng.gen_range(0..8));
+        let enterprise_sector = quadrants[enterprise_quadrant.as_index()].find_empty_sector();
+        Enterprise { 
+            destroyed: false,
+            damaged: HashMap::new(),
+            quadrant: enterprise_quadrant, 
+            sector: enterprise_sector,
+            photon_torpedoes: MAX_PHOTON_TORPEDOES,
+            total_energy: MAX_ENERGY,
+            shields: 0 }
+    }   
 
     fn generate_quadrants() -> Vec<Quadrant> {
         let mut rng = rand::thread_rng();
diff --git a/84_Super_Star_Trek/rust/src/view.rs b/84_Super_Star_Trek/rust/src/view.rs
index 5372cc6b..f54bd4cc 100644
--- a/84_Super_Star_Trek/rust/src/view.rs
+++ b/84_Super_Star_Trek/rust/src/view.rs
@@ -417,7 +417,7 @@ pub fn galaxy_region_map() {
     }    
 }
 
-pub(crate) fn galaxy_scanned_map(galaxy: &Galaxy) {
+pub fn galaxy_scanned_map(galaxy: &Galaxy) {
     println!(
 "Computer record of galaxy for quadrant {}
       1     2     3     4     5     6     7     8
@@ -477,3 +477,20 @@ pub fn klingon_remaining_energy(energy: f32) {
 pub fn klingon_destroyed() {
     println!("   Target Destroyed!") // not standard for game but feedback is good. Sorry Mr. Roddenberry
 }
+
+pub fn congratulations(efficiency: f32) {
+    println!("
+Congratulations, Captain!  The last Klingon battle cruiser
+menacing the Federation has been destroyed.
+
+Your efficiency rating is {efficiency}.
+    ")
+}
+
+pub fn replay() {
+    println!("
+
+The Federation is in need of a new starship commander
+for a similar mission -- if there is a volunteer
+let him step forward and enter 'Aye'")
+}
\ No newline at end of file
diff --git a/84_Super_Star_Trek/rust/tasks.md b/84_Super_Star_Trek/rust/tasks.md
index 06bcf57a..5dc79803 100644
--- a/84_Super_Star_Trek/rust/tasks.md
+++ b/84_Super_Star_Trek/rust/tasks.md
@@ -37,7 +37,10 @@ Started after movement and display of stats was finished (no energy management o
     - [x] 5 - galactic name map
  
 - [ ] restarting the game
+    - after defeat
+    - and by resigning
 - [ ] time progression
     - check all areas where time should move, and adjust accordingly
+    - [ ] defeat due to time expired
 - [ ] intro instructions
 - [ ] victory