As we celebrate the 11th anniversary of the Dreamcast's release and the first birthday of the glorious Dreamcast 2 today, let us not forget that their are still unreleased games for Sega's beloved system that haven't made it to the public's hands yet.

A collector named Tweeg at Dreamcast-Talk, for example, recently uncovered what could be beta builds for Dreamcast editions of Looking Glass Studios' Thief II: The Metal Age and System Shock 2 (spiritual predecessor to BioShock) in a discarded development kit.

Rather than keep the files to himself or hold them for ransom, Tweeg is celebrating the Dreamcast's anniversary by releasing them online at PSO Archive! They aren't yet in a playable state, but he hopes that anyone who's able to get them running will release playable versions eventually.

[Thanks, Jess!]