diff --git a/goby.gemspec b/goby.gemspec
index 8aeaa6d..178e1e1 100644
--- a/goby.gemspec
+++ b/goby.gemspec
@@ -1,10 +1,11 @@
 # coding: utf-8
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'goby/version'
 
 Gem::Specification.new do |spec|
   spec.name          = "goby"
-  spec.version       = "0.1.0"
+  spec.version       = Goby::VERSION.dup
   spec.authors       = ["Nicholas Skinsacos"]
   spec.email         = ["nskins@umich.edu"]
 
@@ -12,11 +13,14 @@ Gem::Specification.new do |spec|
   spec.homepage      = "https://github.com/nskins/goby"
   spec.license       = "MIT"
 
+  spec.files = Dir["{lib}/**/*", "LICENSE", "README.md" ]
   spec.files = Dir["{exe}/**/*", "{lib}/**/*", "{res}/**/*", "LICENSE", "README.md" ]
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
+  spec.add_dependency "i18n", "~> 0.8"
+
   spec.add_development_dependency "bundler", "~> 1.14"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.0"
diff --git a/lib/goby.rb b/lib/goby.rb
index 7ba6b06..1e03ac3 100644
--- a/lib/goby.rb
+++ b/lib/goby.rb
@@ -1,3 +1,9 @@
+# Main module of the framework.
+# Import order matters.
+
+require 'i18n'
+I18n.load_path = Dir["#{File.expand_path(File.dirname(__FILE__))}/goby/config/locales/*.yml"]
+
 # Import order matters.
 
 require 'goby/scaffold'
diff --git a/lib/goby/config/locales/en.yml b/lib/goby/config/locales/en.yml
new file mode 100644
index 0000000..62bd2d8
--- /dev/null
+++ b/lib/goby/config/locales/en.yml
@@ -0,0 +1,6 @@
+en:
+  goby:
+    entity:
+      errors:
+        no_such_item: "What?! You don't have THAT!"
+        item_not_equipped: "You are not equipping THAT!"
diff --git a/lib/goby/config/locales/es.yml b/lib/goby/config/locales/es.yml
new file mode 100644
index 0000000..aa576d2
--- /dev/null
+++ b/lib/goby/config/locales/es.yml
@@ -0,0 +1,6 @@
+en:
+  goby:
+    entity:
+      errors:
+        no_such_item: "¿Qué? ¡No tienes eso!"
+        item_not_equipped: "¡No estás equipando eso!"
diff --git a/lib/goby/entity/entity.rb b/lib/goby/entity/entity.rb
index 82a05d6..bbe9bcd 100644
--- a/lib/goby/entity/entity.rb
+++ b/lib/goby/entity/entity.rb
@@ -7,9 +7,9 @@ module Goby
   class Entity
 
     # Error when the entity specifies a non-existent item.
-    NO_SUCH_ITEM_ERROR = "What?! You don't have THAT!\n\n"
+    NO_SUCH_ITEM_ERROR = I18n.t('goby.entity.errors.no_such_item')
     # Error when the entity specifies an item not equipped.
-    NOT_EQUIPPED_ERROR = "You are not equipping THAT!\n\n"
+    NOT_EQUIPPED_ERROR = I18n.t('goby.entity.errors.item_not_equipped')
 
     # @param [String] name the name.
     # @param [Hash] stats hash of stats
@@ -372,4 +372,4 @@ def check_and_set_gold
 
   end
 
-end
\ No newline at end of file
+end
diff --git a/lib/goby/version.rb b/lib/goby/version.rb
new file mode 100644
index 0000000..d80716b
--- /dev/null
+++ b/lib/goby/version.rb
@@ -0,0 +1,4 @@
+module Goby
+  # Version of the framework.
+  VERSION = "0.1.0".freeze
+end