Terarelease 1.0 (2020)

A public holiday release on the Obscure Gamers community forums (dubbed the Terarelease) occurred on 25 December 2020 (Christmas Day). Various builds were donated and released by different users to celebrate the holiday season.
As of the most recent edit revision, approximately 569 prototypes from the first Terarelease have been preserved on the wiki.
== Xbox 360 XDK hard disk image dumps ==
On the other hand, there are certain files that cannot be on the wiki because they are not actually compilations, but are rather raw Xbox 360 XDK hard disk drive (HDD) image dumps. It appears that barely any HDD images were preserved. The dumps apparently contained an unspecified number of game prototypes that were not referenced in the list, and were formerly located on a now-disabled Mega account under the directory path Tera Release 1.0\Drive Images\360.
HDD Name 	Builds Recovered	Preserved? 	Notes
HALO.rar 	Unknown 	No 	Bungie HHD. Contains Halo Prototypes. The existing prototypes of this HDD are unknown.
10054.rar 	Unknown 	No 	SplashDamage HHD. The existing prototypes of this HDD are unknown.
eurocom.imgc 	Unknown 	No 	Eurocom HHD. The existing prototypes of this HDD are unknown.
ACM001.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
ACM002.imgc 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
DRIVE1.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
DRIVE2.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
DRIVE3.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
DRIVE4.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
DRIVE5.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
DRIVE6.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
DRIVE7.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
DRIVE8.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
fujitsu MHW212OBH.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
fujitsu MHY212OBH.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
ST9120315AS.rar 	Unknown 	No 	TimeGate HHD. The existing prototypes of this HDD are unknown.
TimeGate Studios HDD #1 (Aliens - Colonial Marines and Section 8 Prejudice).rar 	Unknown 	No 	TimeGate HHD. by name, it contains prototypes of said games. It is unknown whether they are all preserved.
Ubisoft Massive HDD #1 - Far Cry 3, Assassin's Creed 4.rar 	
* Assassin's Creed IV: Black Flag (+- Jul 1, 2013 prototype)
* Assassin's Creed IV: Black Flag (Aug 22, 2013 Multiplayer prototype)
* Far Cry 3 (Mar 23, 2011 prototype)
* Far Cry 3 (Apr 11, 2011 prototype)
* Far Cry 3 (Sep 12, 2011 Multiplayer prototype)
* Far Cry 3 (Jan 14, 2012 prototype)
* Far Cry 3 (Feb 2, 2012 prototype)
* Far Cry 3 (Mar 30, 2012 Multiplayer prototype)
* Far Cry 3 (May 4, 2012 Multiplayer prototype)
* Far Cry 3 (May 29, 2012 Multiplayer prototype)
* Far Cry 3 (Aug 14, 2012 Multiplayer prototype)
* Far Cry 3 (Sep 19, 2012 Multiplayer prototype)
* Far Cry 3 (Sep 20, 2012 E Multiplayer prototype)
* Far Cry 3 (Oct 11, 2012 Multiplayer prototype)
* Far Cry 3 (Oct 17, 2012 prototype)
* Far Cry 3 Unknow Multiplayer Build	Partial 	Ubisoft HDD. By name, it contains localization builds of Far Cry 3 and Assassin's Creed 4: Black Flag intended for test use by Massive Entertainment (aka Ubisoft Massive), a company located in Sweden.
This HDD contains 1 multiplayer builds and apparently an incomplete build of AC 4 Black Flag. In the past this HDD stored several builds of FC3, the oldest being from March 2011. Unfortunately all builds below March 2012 are extremely incomplete. Far Cry 3 (Oct 11, 2012 Multiplayer prototype) is mentioned on the hdd but there do not appear to be many files to complete this build however a complete version was found on another hdd.
Ubisoft Massive HDD #2 - Driver San Francisco, Tom Clancy's Splinter Cell Blacklist.rar	
* Driver: San Francisco (Feb 17, 2011 prototype)
* Driver: San Francisco (Feb 23, 2011 prototype)
* Driver: San Francisco (Mar 24, 2011 prototype)
* Driver: San Francisco (Apr 1, 2011 prototype)
* Driver: San Francisco (Apr 21, 2011 prototype)
* Driver: San Francisco (May 28, 2011 prototype)
* Driver: San Francisco (May 30, 2011 prototype)
* Driver: San Francisco (Jul 11, 2011 prototype)
* Driver: San Francisco (Jul 20, 2011 prototype)
* Tom Clancy's Splinter Cell: Blacklist (Feb 1, 2013 prototype)
* Tom Clancy's Splinter Cell: Blacklist (Jun 18, 2013 prototype)
* Tom Clancy's Splinter Cell: Blacklist (Jun 21, 2013 prototype)	Partial (see notes)	Ubisoft HDD. By name, it contains localization builds of Driver: San Francisco and Tom Clancy's Splinter Cell: Blacklist intended for test use by Massive Entertainment (aka Ubisoft Massive), a company located in Sweden.
Small portions of leftover data belonging to several unidentified Rocksmith 2014 builds were also present in the HDD dump, which overwrote the contents of several Driver: San Francisco builds from April and June 2011 - the two builds are not recoverable.
Ubisoft Massive HDD #3 - Assassin's Creed Revelations MP and SP, Splinter Cell 	Unknown 	No 	Ubisoft HDD. By name, it contains prototypes of said games. It is unknown whether they are all preserved.
Blacklist.rar 	Unknown 	No 	Ubisoft HHD. By name, it contains prototypes of Splinter Cell: Blacklist. It is unknown whether these prototypes are preserved.
Conviction, Misc PNET.rar 	Unknown 	No 	Ubisoft HHD. by name, it contains prototypes of Splinter Cell: Conviction and other prototypes related to PartnerNet. The Prototypes are unknown.
ubisoft_massive_black_1.7z 	Unknown 	No 	Ubisoft HHD. Unknown Prototypes.
WD.imgc 	Unknown 	No 	Ubisoft HHD. Given the name, it contains Watch Dogs builds, it is unknown whether the builds available from mega.nz are part of the HDD or not and whether there are more.
== Miscellaneous binaries ==
However, there is one archive that is not a prototype nor is it an HDD image dump, which is:
* Hawaii leftover XML's (no build data).rar: contains 3 xml files referring to md5, namely Hawaii_GAMESCOM.md5.xml (from Need for Speed: Most Wanted 2012 (Aug 12, 2012 prototype) and the files Hawaii_SHOWFLOOR.md5.xml and Hawaii_andydavidson.md5.xml that do not seem to correspond to no known build.
If you have a build that is not yet present on this site, contact the Hidden Palace discord server or, otherwise, upload that build.
Original thread on ObscureGamers.com. 
== Prototypes obtained (unique builds) ==