diff --git a/CHANGELOG b/CHANGELOG
index fb9c0434..54ded876 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -4,6 +4,7 @@ Finally support Compass in Sprockets! Thanks to @xdite and @petebrowne
 Sitemap object representing the known world
 FileWatcher proxies file change events
 Unified callback solution
+Removed Slim and Maruku from base install. Will need to be installed and required by the user (in config.rb)
 
 2.0.14
 ====
diff --git a/fixtures/test-app/config.rb b/fixtures/test-app/config.rb
index 04a6d333..0e5a6867 100644
--- a/fixtures/test-app/config.rb
+++ b/fixtures/test-app/config.rb
@@ -1,3 +1,8 @@
+require "maruku"
+require "slim"
+require "liquid"
+require "coffee-filter"
+
 page "/fake.html", :proxy => "/real.html", :layout => false
 
 ignore "/should_be_ignored.html"
diff --git a/lib/middleman.rb b/lib/middleman.rb
index dfb16c38..11d68f44 100755
--- a/lib/middleman.rb
+++ b/lib/middleman.rb
@@ -73,9 +73,7 @@ module Middleman
   
   # Custom Renderers
   module Renderers
-    autoload :Haml,         "middleman/renderers/haml"
     autoload :Sass,         "middleman/renderers/sass"
-    autoload :Slim,         "middleman/renderers/slim"
     autoload :Markdown,     "middleman/renderers/markdown"
     autoload :ERb,          "middleman/renderers/erb"
     autoload :CoffeeScript, "middleman/renderers/coffee_script"
diff --git a/lib/middleman/base.rb b/lib/middleman/base.rb
index 4eda3c0a..fbb039ce 100644
--- a/lib/middleman/base.rb
+++ b/lib/middleman/base.rb
@@ -77,10 +77,10 @@ module Middleman::Base
       
       # Parse YAML from templates
       app.register Middleman::CoreExtensions::FrontMatter
-
+      
       app.set :default_features, [
-        :lorem,
-        :sitemap_tree
+        # :lorem,
+        # :sitemap_tree
       ]
 
       # Default layout name
diff --git a/lib/middleman/core_extensions/compass.rb b/lib/middleman/core_extensions/compass.rb
index ec429ea8..77927de2 100644
--- a/lib/middleman/core_extensions/compass.rb
+++ b/lib/middleman/core_extensions/compass.rb
@@ -1,3 +1,5 @@
+require "compass"
+
 module Middleman::CoreExtensions::Compass
   class << self
     def registered(app)
@@ -6,14 +8,6 @@ module Middleman::CoreExtensions::Compass
       app.define_hook :compass_config
       app.define_hook :after_compass_config
 
-      require "compass"
-      
-      # Susy grids
-      begin
-        require "susy"
-      rescue LoadError
-      end
-
       app.after_configuration do
         # Support a stand-alone compass config file
         # Many options are overwritten by Middleman, but the config is a good
diff --git a/lib/middleman/core_extensions/rendering.rb b/lib/middleman/core_extensions/rendering.rb
index b6ea97d4..f502c7c3 100644
--- a/lib/middleman/core_extensions/rendering.rb
+++ b/lib/middleman/core_extensions/rendering.rb
@@ -7,8 +7,6 @@ module Middleman::CoreExtensions::Rendering
       app.register Padrino::Rendering
 
       # Activate custom renderers
-      app.register Middleman::Renderers::Slim
-      app.register Middleman::Renderers::Haml
       app.register Middleman::Renderers::Sass
       app.register Middleman::Renderers::Markdown
       app.register Middleman::Renderers::ERb
diff --git a/lib/middleman/renderers/erb.rb b/lib/middleman/renderers/erb.rb
index 236cf789..5efef00c 100644
--- a/lib/middleman/renderers/erb.rb
+++ b/lib/middleman/renderers/erb.rb
@@ -15,7 +15,7 @@ module Middleman::Renderers::ERb
         engine = app.settings.erb_engine
         
         if engine.is_a? Symbol
-          engine = app.tilt_template_from_symbol(engine)
+          engine = app.erb_tilt_template_from_symbol(engine)
         end
         
         ::Tilt.prefer(engine)
@@ -25,7 +25,7 @@ module Middleman::Renderers::ERb
   end
   
   module ClassMethods
-    def tilt_template_from_symbol(engine)
+    def erb_tilt_template_from_symbol(engine)
       engine = engine.to_s
       engine = engine == "erb" ? "ERB" : engine.camelize
       settings.erb_engine_prefix.const_get("#{engine}Template")
diff --git a/lib/middleman/renderers/haml.rb b/lib/middleman/renderers/haml.rb
deleted file mode 100755
index 73a45fb3..00000000
--- a/lib/middleman/renderers/haml.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-module Middleman::Renderers::Haml
-  class << self
-    def registered(app)
-      # Base library
-      require "haml"
-
-      # Coffee-script filter for Haml
-      begin
-        require "coffee-filter"
-      rescue LoadError
-      end
-      
-      # Code-ray Syntax highlighting
-      begin
-        require 'haml-coderay'
-      rescue LoadError
-      end
-      
-      app.helpers Helpers
-      
-      #app.set :haml, app.settings.haml.merge({ :ugly_haml => true })
-    end
-    alias :included :registered
-  end
-  
-  module Helpers
-    def haml_partial(name, options = {})
-      render(name, options)
-    end
-  end
-end
\ No newline at end of file
diff --git a/lib/middleman/renderers/liquid.rb b/lib/middleman/renderers/liquid.rb
index 929fff53..20c00647 100644
--- a/lib/middleman/renderers/liquid.rb
+++ b/lib/middleman/renderers/liquid.rb
@@ -16,7 +16,6 @@ module Middleman::Renderers::Liquid
             if result && result[1] == :liquid
               request['custom_locals'] ||= {}
               request['custom_locals'][:data] = data.to_h
-              # request['custom_locals'].merge(data.to_h)
             end
 
             true
diff --git a/lib/middleman/renderers/markdown.rb b/lib/middleman/renderers/markdown.rb
index d7d7bf47..ccff0042 100644
--- a/lib/middleman/renderers/markdown.rb
+++ b/lib/middleman/renderers/markdown.rb
@@ -1,11 +1,9 @@
-require "tilt"
-
 module Middleman::Renderers::Markdown
   class << self
     def registered(app)
       app.extend ClassMethods
       
-      app.set :markdown_engine, :maruku
+      app.set :markdown_engine, nil
       
       if !app.respond_to? :markdown_engine_prefix
         app.set :markdown_engine_prefix, ::Tilt
@@ -14,18 +12,20 @@ module Middleman::Renderers::Markdown
       app.after_configuration do
         engine = app.settings.markdown_engine
         
-        if engine.is_a? Symbol
-          engine = app.tilt_template_from_symbol(engine)
-        end
+        unless engine.nil?
+          if engine.is_a? Symbol
+            engine = app.markdown_tilt_template_from_symbol(engine)
+          end
         
-        ::Tilt.prefer(engine)
+          ::Tilt.prefer(engine)
+        end
       end
     end
     alias :included :registered
   end
   
   module ClassMethods
-    def tilt_template_from_symbol(engine)
+    def markdown_tilt_template_from_symbol(engine)
       engine = engine.to_s
       engine = engine == "rdiscount" ? "RDiscount" : engine.camelize
       settings.markdown_engine_prefix.const_get("#{engine}Template")
diff --git a/lib/middleman/renderers/slim.rb b/lib/middleman/renderers/slim.rb
deleted file mode 100644
index c67561f7..00000000
--- a/lib/middleman/renderers/slim.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-module Middleman::Renderers::Slim
-  class << self
-    def registered(app)
-      require "slim"
-    end
-    alias :included :registered
-  end
-end
\ No newline at end of file
diff --git a/middleman.gemspec b/middleman.gemspec
index 90f0f5a6..267fbaea 100644
--- a/middleman.gemspec
+++ b/middleman.gemspec
@@ -24,7 +24,6 @@ Gem::Specification.new do |s|
   s.add_dependency("thin", ["~> 1.2.11"])
   s.add_dependency("thor", ["~> 0.14.0"])
   s.add_dependency("tilt", ["~> 1.3.1"])
-  s.add_dependency("maruku", ["~> 0.6.0"])
   s.add_dependency("sinatra", ["~> 1.3.1"])
   s.add_dependency("rack-test", ["~> 0.6.1"])
   s.add_dependency("uglifier", ["~> 1.0.0"])
@@ -41,14 +40,13 @@ Gem::Specification.new do |s|
   
   s.add_dependency("guard", ["~> 0.8.8"])
   s.add_dependency("rb-fsevent")
-  s.add_dependency("rb-inotify")
-  # s.add_dependency("eventmachine", ["1.0.0.beta.4"])
-  # s.add_dependency("middleman-livereload", ["~> 0.2.0"])
+  # s.add_dependency("rb-inotify")
   
   # Development and test
   s.add_development_dependency("coffee-filter", ["~> 0.1.1"])
   s.add_development_dependency("liquid", ["~> 2.2.0"])
   s.add_development_dependency("slim", ["~> 1.0.2"])
+  s.add_development_dependency("maruku", ["~> 0.6.0"])
   s.add_development_dependency("cucumber", ["~> 1.0.2"])
   s.add_development_dependency("rake", ["~> 0.9.2"])
   s.add_development_dependency("rspec", ["~> 2.6.0"])