diff --git a/birb/modules/gamesystem/init.lua b/birb/modules/gamesystem/init.lua
new file mode 100644
index 0000000..c0ea266
--- /dev/null
+++ b/birb/modules/gamesystem/init.lua
@@ -0,0 +1,86 @@
+-- modules/gamesystem :: a simple save system, based on the Deserialization feature
+
+--[[
+  Copyright © 2021 Kazhnuz
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy of
+  this software and associated documentation files (the "Software"), to deal in
+  the Software without restriction, including without limitation the rights to
+  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+  the Software, and to permit persons to whom the Software is furnished to do so,
+  subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+  FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+]]
+
+local GameSystem = require("birb.classes.serializable.serializer"):extend()
+
+function GameSystem:new(varToSerialize, slotNumber)
+    self.slot = -1
+    self.slotNumber = slotNumber or 1
+    self.version = core.conf.gameversion or "N/A"
+    varToSerialize = varToSerialize or {}
+    GameSystem.super.new(self, varToSerialize)
+end
+
+function GameSystem:reload()
+    self:read(self.slot)
+end
+
+function GameSystem:read(save_id)
+    self.slot = save_id
+    if (self.slot > 0) then
+        self:deserialize(self:getSaveName())
+    end
+end
+
+function GameSystem:deleteCurrentSave()
+    if (self.slot > 0) then
+        self:delete(self:getSaveName())
+        self.metadata:remove(self.slot)
+    end
+end
+
+function GameSystem:write()
+    if (self.slot > 0) then
+        self:serialize(self:getSaveName())
+        self.metadata:update()
+    end
+end
+
+function GameSystem:getSaveName(saveslot)
+    local saveslot = saveslot or self.slot
+    return "save" .. saveslot .. ".save"
+end
+
+function GameSystem:resetSaves()
+    for i = 1, self.slotNumber do
+        self:delete(self:getSaveName(i))
+    end
+end
+
+function GameSystem:update(dt)
+    self.gametime = self.gametime + dt
+end
+
+function GameSystem:getTime()
+    return utils.time.getFields(self.gametime)
+end
+
+function GameSystem:getTimeString()
+    return utils.time.toString(self.gametime)
+end
+
+function GameSystem:printTime()
+    core.debug:print(self:getTimeString())
+end
+
+return GameSystem