diff --git a/NoPELib/player_settings.py b/NoPELib/player_settings.py
index dc823fa..1fa3494 100644
--- a/NoPELib/player_settings.py
+++ b/NoPELib/player_settings.py
@@ -5,6 +5,7 @@ Needs to handle modifying number of players
 
 """
 
+import abc
 import copy
 import json
 import logging
@@ -16,7 +17,8 @@ _log = logging.getLogger('NoPE-Lib')
 class PlayersManager:
     """
     Manager of players for a given game.
-    This class implements most methods available to classic dict.
+    Since this class implements most methods available to classic dict,
+    you can think of this class as a python dict.
 
     Attributes:
         gameID (str): The gameID of the active game
@@ -26,7 +28,7 @@ class PlayersManager:
     """
     defaultPlayerConfig = {"flags": [], "expansions": {}, "games": {}}
 
-    def __init__(self, gameID: str=None, activePlayers: list[str]=None, playersPath: str='./players.json', loggerID: str='PlayersManager'):
+    def __init__(self, gameID: str=None, activePlayers: list[str]=None, playersPath: str='./players.json', loggerID: str='PlayersManager', includedExpansions: tuple[str]=None):
         """
         Initialises a list of players.
 
@@ -114,7 +116,7 @@ class PlayersManager:
     def gameID(self):
         self._currentGameID = None
         self._player_data = {name: Player(name, self, **cfg) for name, cfg in self._cfg["players"].items()}
-    
+
     def keys(self):
         """ Iterator of the active players' names """
         return self._player_data.keys()
@@ -131,28 +133,16 @@ class PlayersManager:
         with open(self._playersPath, 'w') as f:
             self._cfg = json.dump(f, self._cfg)
 
-    def addExpansion(self, expansion):
-        """
-        Adds an expansion, used by things like PDO-Lib.
-
-        Args:
-            expansion (Expansion): The expansion to add.
-        """
-
-        expID = expansion.__class__.ID
-        _log.debug(f'Adding expansion {expID}...')
-        expansion = expansion(self._cfg.get(expID))
-
-
 
 class Player:
     """
-    The game settings are not guaranteed to have data in it.
 
     Attributes:
         flags: 
-        expansions: 
-        gameSave: 
+        availableExpansions: 
+        expansionsConfig: 
+        gameSave: The game settings are not guaranteed to have data in it.
+        gameState: 
 
     Methods:
         generateConfig: 
@@ -181,12 +171,12 @@ class Player:
         self._manager[self._name] = self.generateConfig()
 
     @property
-    def expansions(self):
-        return self._expansions
+    def expansionsConfig(self):
+        return self._expansionsConfig
     
-    @expansions.setter
+    @expansionsConfig.setter
     def expansions(self, newExpansions):
-        self._expansions = newExpansions
+        self._expansionsConfig = newExpansions
         # The container was changed and must be transmited to the manager
         self._manager[self._name] = self.generateConfig()
     
@@ -201,6 +191,110 @@ class Player:
 
     def generateConfig(self):
         return {"flags": self._flags, "expansions": self._expansions, "games": self._games}
+    
+    def punish(self, value, preferedExpansion: str=None):
+        do_something = lambda value: value
+        additionalInfos = {"expansionID": "challengeDB", "balancedValue": 0.2, "showOnScreen": "Do 100 push-up", "error": None, "done": False}
+        # NOTE Make a result class instead and an error class
+        additionalInfos = do_something(value)
+        return additionalInfos
+
+
+class Expansion:
+    """
+    
+    Attributes:
+
+    Methods:
+        step: 
+        reset: 
+        close: 
+    """
+
+    @abc.abstractmethod
+    def __init__(self):
+        """
+        Raise an error if not available
+        """
+        pass
+
+    @abc.abstractmethod
+    def step(self, action):
+        """
+        Call close if an error is thrown
+        """
+        pass
+
+    @abc.abstractmethod
+    def reset(self):
+        pass
+    
+    @abc.abstractmethod
+    def close(self):
+        pass
+
+
+class ExpansionManager:
+    """
+    Manager of the availability of the expansions.
+
+    Attributes:
+    includedExpansions: tuple of str
+        Container of the expansions to try making available
+    releventExpansions: dict of Expansion
+        Container of the relevent expansions
+    """
+    tags = ["shock", "spice", "sour", "drink", "challenge"]
+
+    def __init__(self, playersManager: PlayersManager, includedExpansions: tuple[str]=None):
+        self.playersManager = playersManager
+        self._includedExpansions = tuple(includedExpansions) if includedExpansions is not None else ()
+        self._releventExpansions = {}  # TODO Populate the dictionnary
+    
+    @property
+    def includedExpansions(self):
+        return self._includedExpansions
+    
+    @includedExpansions.setter
+    def includedExpansions(self, newIncluded: tuple[str]):
+        self._includedExpansions = tuple(newIncluded)
+        self._includedChanged()
+    
+    @includedExpansions.deleter
+    def includedExpansions(self):
+        self._includedExpansions = ()
+    
+    @property
+    def releventExpansions(self):
+        return self._releventExpansions
+    
+    def _includedChanged(self):
+        """
+        Compute the list of only the relevant expansions.
+        The expansions that do not exists are excluded.
+        The expansions that have no players assigned to them are excluded.
+        The expansions that are not responding are excluded.
+        """
+        pass
+
+    def _activePlayersChanged(self, activatePlayers):
+        pass
+
+    def _errorOccured(self, expansionID):
+        pass
+
+    def _expansionPlayersChanged(self, expansionID):
+        pass
+    
+    def resetExpansion(self, expansion: Expansion, suppressError: bool=False):
+        """
+        If the expansion was relevent, close it.
+        In any case, try creating a new 
+        """
+        # If the expansion was relevent, close it
+        # Try creating a new instance of the expansion
+        # Update the list of relevent expansions
+        pass
 
 
 if __name__ == "__main__":
@@ -208,9 +302,10 @@ if __name__ == "__main__":
     configPath = Path(__file__).parent / "players.json"
     manager = PlayersManager(playersPath=configPath, gameID="gameID0")
     # Iteration
-    for name in manager:
-        print(name)
+    for playerName in manager:
+        print(playerName)
     # Modification of a players data
     brosef = manager["Brosef"]
     brosef.gameSave = [1]
     print(manager["Brosef"].gameSave)
+    brosef.state = ["alive"]
\ No newline at end of file
diff --git a/NoPELib/players.json b/NoPELib/players.json
index 6f6b7ca..f91ab46 100644
--- a/NoPELib/players.json
+++ b/NoPELib/players.json
@@ -1,16 +1,11 @@
 {
-    "exampleExpansion": {
-        "optionA": 1,
-        "optionB": 2
-    },
-
-    "availableExpansion":
+    "expansions":
     {
-        "bracelet1": "Brosef",
-        "robotic_barman": "Tango",
-        "challenge": "TRS"
+        "shockColar1": {"players": ["Brosef"], "class": "pishock", "type": ["shock"]},
+        "robotBarman": {"players": ["Tango", "TRS_MML"], "class": "roboticBarman", "type": ["drink"]},
+        "challengeDB": {"players": ["TRS_MML"], "class": "challengeDataBase", "type": ["challenge"]},
+        "sourCandy": {"players": [], "class": "sourCandy", "type": ["food"]}
     },
-
     "players": {
         "Brosef": {"flags": [], "expansions": {"exampleExpansion": {"playerOption": 5}}, "games": {"gameID0": 2}},
         "TRS_MML": {"flags": [], "expansions": {"exampleExpansion": {"playerOption": 5}}, "games": {"gameID0": 1}},