diff --git a/environment.rb b/environment.rb
new file mode 100644
index 000000000..4b8731045
--- /dev/null
+++ b/environment.rb
@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+
+module Environment
+  class Depot
+    attr_accessor :packs
+
+    def initialize
+      @packs = {
+        simple_transportation_pack: {
+          intelligence: [:cellphone],
+          items: [:medipack :chevy_versa]
+        },
+        standard_transportation_pack: {
+          intelligence: [:cellphone, :antenna],
+          arsenal: [:colt_1911],
+          items: [:handcuffs, :medipack, :chemistry, :chevy_versa]
+        },
+        simple_mission_pack: {
+          intelligence: [:infopack, :laptop, :cellphone, :antenna],
+          arsenal: [[:colt_1911], [:handcuffs, :medipack, :chemistry, :financial]]
+        },
+        standar_mission_pack: {
+          intelligence: [:infopack, :laptop, :cellphone, :antenna],
+          arsenal: [:remington_870, :colt_1911, :machete, :hatchet],
+          items: [:handcuffs, :medipack, :chemistry, :financial]
+        }
+      }
+    end
+  end
+
+  class Control
+    attr_accessor :missions
+
+    @@modes = [:paused, :aborted, :accomplished, :failed]
+    def initialize
+      @missions = {}
+    end
+
+    def new_mission(name:, objective:, pack:)
+      @missions[name] = {objective: objective, status: :active, pack: pack}
+    end
+
+    @@modes.each do |mode|
+      define_method("set_mission_to_#{mode}") do |mission|
+        @missions[mission][:status] = mode
+      end
+    end
+  end
+
+  class Human
+    attr_accessor :id, :name, :personal_data, :professional_data
+
+    def initialize(name: nil)
+      @name = name
+      @id = object_id
+    end
+
+    define_method('set_personal_data') do |surname:, age:, country:, language:, marital_status:, children:|
+      @personal_data = { surname: surname, age: age, country: country, language: language,
+                         marital_status: marital_status, children: children}
+    end
+
+    define_method('set_professional_data') do |position:, occupation:, skills:, observations:|
+      @professional_data = { position: position, occupation: occupation, skills: skills,
+                             observations: observations}
+    end
+
+    class Worker < Human
+      attr_accessor :standard_shift, :extra_shift
+
+      def initialize(name)
+        super name: name
+        @standard_shift = { id: @id, hours: 8, payment: 0.0, facility: '', status: nil}
+        @extra_shift = { id: @id, hours: 8, payment: 0.0, facility: '', status: nil}
+      end
+    end
+  end
+end
diff --git a/error_test.rb b/error_test.rb
new file mode 100644
index 000000000..54aa6f040
--- /dev/null
+++ b/error_test.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require_relative './environment'
+
+class ErrorTest
+  include Environment
+  attr_accessor :board, :depot, :control
+
+  def initialize
+    @board = {players: {}, control: {}, status: nil}
+    @depot = Environment::Depot.new
+    @control = Environment::Control.new
+  end
+
+  def new_worker(name: nil)
+    raise NameError, 'Name cannot be empty' if name.nil?
+
+    @board[:players].store name, Environment::Human::Worker.new(name)
+  rescue NameError => e
+    puts "Error: #{e}"
+  end
+
+  def new_mission(name: nil, objective: nil, pack: nil)
+    raise NameError, 'name cannot be empty' if name.nil?
+    raise NameError, 'Objetive cannot be empty' if objective.nil?
+    raise NameError, 'Pack cannot be empty'     if pack.nil?
+
+    @control.new_mission(name: name, objective: objective, pack: pack)
+    @board[:control][:missions] = @control.missions
+  rescue NameError => e
+    puts "Error: #{e}"
+  end
+end
+
+error_test = ErrorTest.new
+player = error_test.new_worker
+
+player2 = error_test.new_mission name: 'Fer', objective: 'Conquer the zone'
+
+# player1 = error_test.new_worker name: 'Diego'
+# diego.set_personal_data(surname: 'Mota', age: 40, marital_status: :single, children: 0, country: :mx, language: :es)
+# diego.set_professional_data(position: 'SE', occupation: 'IT', skills: [:ruby, :blender], observations: 'none')
+# puts "#{diego.name}, #{diego.class}", diego.personal_data, diego.professional_data
+
+# name = :alpha; objective = 'Get Alpha to the base'; pack = :simple_transportation_pack
+# error_test.new_mission(name: name, objective: objective, pack: error_test.depot.packs[pack])
+# puts error_test.control.missions[:alpha]
+# error_test.control.set_mission_to_accomplished(:alpha) and puts error_test.control.missions[:alpha]
diff --git a/game.rb b/game.rb
new file mode 100644
index 000000000..864ce66bb
--- /dev/null
+++ b/game.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require './environment'
+
+class Game
+  attr_accessor :board, :depot, :control
+
+  def initialize
+    @board = {players: {}, control: {}, status: nil}
+    @depot = Environment::Depot.new
+    @control = Environment::Control.new
+  end
+
+  def new_worker(name: nil)
+    worker = Environment::Human::Worker.new(name)
+    @board[:players][name] = worker
+  end
+
+  def new_mission(name:, objective:, pack:)
+    @control.new_mission(name: name, objective: objective, pack: pack)
+    @board[:control][:missions] = @control.missions
+  end
+end
+
+game = Game.new
+diego = game.new_worker name: 'Diego'
+diego.set_personal_data(surname: 'Mota', age: 40, marital_status: :single, children: 0, country: :mx, language: :es)
+diego.set_professional_data(position: 'SE', occupation: 'IT', skills: %i[ruby blender], observations: 'none')
+puts "#{diego.name}, #{diego.class}", diego.personal_data, diego.professional_data
+
+name = :alpha
+objective = 'Get Alpha to the base'
+pack = :simple_transportation_pack
+game.new_mission(name: name, objective: objective, pack: game.depot.packs[pack])
+puts game.control.missions[:alpha]
+game.control.set_mission_to_accomplished(:alpha) and puts game.control.missions[:alpha]