

I’m being cheeky. I really just mean it’s an old technology that anyone could use and doesn’t.
If you want a real answer. Sega died because of the conflict between its American branch that was pushing the 32x (putting the genesis on life support when 5th Gen consoles like the 3DO were already releasing) and the Japanese parent that botched the Saturns release. ($100 more than the ps1, and retailers weren’t told about the initial exclusivity with KB toys so other retailers didn’t order any.) The Saturn was also hard to develop for and the Dreamcast had no piracy protections when it finally did release.
Basically a series of bad internal communication and multiple failures to keep up with consumer and retailer expectations and demands. They still made some of the best hardware of all time. The Dreamcast is a near perfect console the only gripe anyone has now is that the controller isn’t particularly comfortable.
A side note. The Xbox brand is the spiritual successor to Sega. The developers of the OG Xbox took a lot of design inspiration from the Dreamcast and helped to implement a windows compatibility layer for the Dreamcast before the Xbox was in development. Xbox also targets the same demographic of sports gamers and middle/high school boys.
They are puzzle games with a visual novel for the framing device