1  # Persistence & Save System
 2  
 3  ## Save slots
 4  
 5  3 save slots total.
 6  
 7  - **Slot 1** (index 0): Reserved for auto-save
 8  - **Slots 2–3** (index 1–2): Manual saves
 9  
10  ## Auto-save
11  
12  Triggers every 3 turns automatically.
13  Overwrites slot 1 without confirmation.
14  
15  ## Save data
16  
17  Each save stores:
18  - Full game state (ship, galaxy, position, points, turn, log, etc.)
19  - Save metadata for display: commander name, rank, points, turn, ship name, planets explored, timestamp
20  
21  ## Main menu
22  
23  Shows all non-empty save slots with preview data.
24  Player can load any saved game or start a new mission.
25  
26  ## In-game save/load
27  
28  Available from the SAVE tab during navigation screen.
29  - **Save**: Writes current state to selected slot
30  - **Load**: Restores state from selected slot
31  - **Delete**: Clears a slot
32  
33  ## Backward compatibility
34  
35  When loading a save from before the component HP system was added,
36  the game builds a fresh compHealth object from the legacy scalar values.