Brandon Saltalamacchia Updated on May 5, 2026 2 min read

SEGA Reveals Never-Seen-Before Sonic Adventure Concept Art From 1998

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This year is Sonic's 35th anniversary, and with that has come a lot of announcements and collaborations, including a recently revealed bar of gold with Sonic's face on it... We're not joking.

The odd news aside, SEGA has revealed early concept art of one of the best Sonic games ever made, Sonic Adventure, which was released on SEGA Dreamcast in 1999. It was one of the best-selling games for the console, and I personally remember it vividly as it was one of those games that took console gaming to a whole new level.

Sonic's official X account showcased a wide range of never-before-seen images of this game, which is crazy when you think of it. SEGA still have many files in their database that have yet to be seen by the public, this included! Take a look at all the images below.

Image credit: SEGA

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