diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..cb1d15f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+data/settings.json
\ No newline at end of file
diff --git a/lib/setting.rb b/lib/setting.rb
new file mode 100644
index 0000000..c3a60db
--- /dev/null
+++ b/lib/setting.rb
@@ -0,0 +1,49 @@
+class IMICRTS
+  class Setting
+    def self.file_path
+      "#{GAME_ROOT_PATH}/data/settings.json"
+    end
+
+    def self.setup
+      save_defaults unless File.exist?(Setting.file_path)
+      @store = JSON.parse(File.read(Setting.file_path), symbolize_names: true)
+    end
+
+    def self.save_defaults
+      hash = {
+        player_name: "Rookie",
+        player_default_map_spawn: 0,
+        default_map: "test_map",
+
+        skip_intro: false,
+
+        debug_mode: false,
+        debug_info_bar: false,
+        debug_pathfinding: false,
+        debug_pathfinding_allow_diagonal: true,
+      }
+
+      File.open(Setting.file_path, "w") {|f| f.write(JSON.dump(hash))}
+    end
+
+    def self.enabled?(key)
+      @store.dig(key)
+    end
+
+    def self.disabled?(key)
+      @store.dig(key)
+    end
+
+    def self.set(key, value)
+      @store[key]=value
+    end
+
+    def self.get(key)
+      @store.dig(key)
+    end
+
+    def self.save!
+      File.open(Setting.file_path, "w") {|f| f.write(JSON.dump(@store))}
+    end
+  end
+end
\ No newline at end of file