A handful of previously unreleased demo’s and games for the PlayStation 2 have just been posted, after being recovered from a formatted hard drive recently found.
Of the games posted, Snood and The Benefactor seem to be demo’s of games that were never released on the PS2. Pillage was actually released a year after this “preview copy” on PS2, GC & Xbox, under the name: Future Tactics: The Uprising. I’m not sure what the changes are from this version to the final release, but the original game was said to be “stuck in development” for awhile, so I assume the changes extend far past the name.
Red Dead Revolver was eventually released as a full game on the PS2 and the final version had a different title screen (below) than the one from the preview copy, shown in the thumbnail above. I’m assuming this is an unfinished (or at least un-polished) preview copy, but I don’t think a full list of changes exists.
The person who released these demos also released a copy of Superman 64 (Superman 2000) for the PlayStation 1, which appears to be a newer version than the one posted a few years ago (although no list of changes have been confirmed): https://www.retrorgb.com/superman-64-ps1-prototype-found.html
The games have been posted for download by the person who dumped them and the original post can be found here: https://www.deviantart.com/digitalexplorations/journal/The-rest-of-the-old-2013-auction-loot-862670600
Snood demo for PS2: http://www.mediafire.com/file/3jdimjsl5o1zus7/snooddemo_ps2.rar/file
The Benefactor demo for PS2: http://www.mediafire.com/file/got4fp9h0zvm00t/benefactordemo_ps2.rar/file
Pillage for PS2 preview copy: http://www.mediafire.com/file/y4k2ybhayam37tt/pillagepreview_ps2.rar/file
Red Dead Revolver for PS2 preview copy: http://www.mediafire.com/file/clu6xo6nit4yc5w/rdrevolverpreview_ps2.rar/file
Superman 2000: http://www.mediafire.com/file/b0zpzl3lungqsup/surprise%2521.rar/file