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	<id>https://homarchive.org/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Tamamo-no-Bae</id>
	<title>The Hall of Mirrors - User contributions [en]</title>
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	<updated>2026-09-04T23:44:22Z</updated>
	<subtitle>User contributions</subtitle>
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	<entry>
		<id>https://homarchive.org/index.php?title=Portal_2&amp;diff=74</id>
		<title>Portal 2</title>
		<link rel="alternate" type="text/html" href="https://homarchive.org/index.php?title=Portal_2&amp;diff=74"/>
		<updated>2026-09-04T22:10:19Z</updated>

		<summary type="html">&lt;p&gt;Tamamo-no-Bae: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{Bottle&lt;br /&gt;
| image = [[File:Portal2TitleScreen.png|320px]]&lt;br /&gt;
| title = Portal 2&lt;br /&gt;
| developer = Valve&lt;br /&gt;
| publisher = Valve&lt;br /&gt;
| release = April 19, 2011&lt;br /&gt;
| engine = Source&lt;br /&gt;
| platforms = Windows, macOS, Linux, PlayStation 3, Xbox 360&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;&#039;&#039;Portal 2&#039;&#039;&#039;&#039;&#039; is the sequel to [[Portal]], the puzzle-platform game originally released as part of [[The Orange Box]]. It features significant upgrades across multiple aspects of the game, including its engine, graphics, physics, and gameplay systems.&lt;br /&gt;
&lt;br /&gt;
It also features a larger single-player campaign, new characters, a co-op mode and an in-game level editor.&lt;br /&gt;
&lt;br /&gt;
Its development cycle was particularly complex, going through multiple different storylines and design choices, especially in its behind-the-scenes maps, resulting in a substantial amount of development material and unused content.&lt;br /&gt;
&lt;br /&gt;
== Subpages ==&lt;br /&gt;
[[Proto:Portal 2]] - Prototype builds of Portal 2&lt;br /&gt;
&lt;br /&gt;
[[History:Portal 2]] - The history of Portal 2 related discoveries.&lt;br /&gt;
&lt;br /&gt;
[[Easteggs:Portal 2]] - Sneaky secrets left by the devs!&lt;br /&gt;
&lt;br /&gt;
[[Glitches:Portal 2]] - Now you&#039;re thinking with bugs!&lt;br /&gt;
&lt;br /&gt;
[[Prerelease:Portal 2]] - The story of Portal 2&#039;s development&lt;br /&gt;
&lt;br /&gt;
== Unused content ==&lt;br /&gt;
&lt;br /&gt;
{{subpage|Unused Models|image=Test1.png|width=48|min-width=60|text= Placeholder.}}&lt;br /&gt;
{{subpage|Unused Textures|image=Test2.png|width=48|min-width=60|text=Placeholder}}&lt;br /&gt;
{{subpage|Unused Sounds|image=Test3.png|width=56|min-width=60|Placeholder.}}&lt;br /&gt;
{{subpage|Unused Maps|image=Test4.png|width=50|min-width=60|text=Placeholder}}&lt;br /&gt;
{{subpage|Unused Text|image=Test5.png|width=50|min-width=60|text=Placeholder}}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
[[Category:Games]]&lt;br /&gt;
&lt;br /&gt;
{{Portal Series}}&lt;/div&gt;</summary>
		<author><name>Tamamo-no-Bae</name></author>
	</entry>
	<entry>
		<id>https://homarchive.org/index.php?title=Proto:Portal_2&amp;diff=73</id>
		<title>Proto:Portal 2</title>
		<link rel="alternate" type="text/html" href="https://homarchive.org/index.php?title=Proto:Portal_2&amp;diff=73"/>
		<updated>2026-09-04T22:03:03Z</updated>

		<summary type="html">&lt;p&gt;Tamamo-no-Bae: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{subpage}}&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Portal 2&#039;&#039;&#039; had a long and complex development cycle, with multiple changes to its story, gameplay, environments, and technology. This page serves as an index of known development builds and development material.&lt;br /&gt;
&lt;br /&gt;
== Known builds ==&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;This page documents known development versions of Portal 2.&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
=== 2009 ===&lt;br /&gt;
{{subpage|July 28th, 2009|text=Corehub build}}&lt;br /&gt;
&lt;br /&gt;
=== 2010 ===&lt;br /&gt;
{{subpage|February 4th, 2010}}&lt;br /&gt;
{{subpage|March 18th, 2010}}&lt;br /&gt;
{{subpage|July 22nd, 2010}}&lt;br /&gt;
{{subpage|August 30th, 2010}}&lt;br /&gt;
{{subpage|September 24th, 2010}}&lt;br /&gt;
{{subpage|September 26th, 2010}}&lt;br /&gt;
{{subpage|October 19th, 2010}}&lt;br /&gt;
{{subpage|December 1st, 2010}}&lt;br /&gt;
{{subpage|December 2nd, 2010}}&lt;br /&gt;
&lt;br /&gt;
=== 2011 ===&lt;br /&gt;
{{subpage|January 12th, 2011}}&lt;br /&gt;
{{subpage|January 21st, 2011}}&lt;br /&gt;
{{subpage|January 25th, 2011}}&lt;br /&gt;
{{subpage|February 4th, 2011}}&lt;br /&gt;
{{subpage|February 11th, 2011}}&lt;br /&gt;
{{subpage|DVD Preload Build}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Development builds]]&lt;br /&gt;
[[Category:Proto]]&lt;/div&gt;</summary>
		<author><name>Tamamo-no-Bae</name></author>
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