The Atari Jaguar was the supposed first 64 bit console if my memory serves me right but it wasnt a great effort by Atari whos best days were very much behind them, luckily though theres still coders releasing software for it, heres the latest news, all links come from PDRoms and all thanks to them, an excellent homebrew news site:

Fast Food 64 (WIP) (16-05-2017) (Atari Jaguar Game) (Atari Jaguar)

Fast Food 2600 Remake (WIP) (16-05-2017) (Atari Jaguar Game) (Atari Jaguar)

Xevious (Commercial) (Atari Jaguar Game) (Atari Jaguar)

Rebooteroids (Commercial) (Atari Jaguar Game) (Atari Jaguar)

Custodian (Commercial) (Atari Jaguar Game) (Atari Jaguar)

Arne – Jäger des Jags (Atari Jaguar) (Commercial) (Atari Jaguar)

uFLY (22-08-2015) (Jaguar Game) (Atari Jaguar)

Jagmatch (08-02-2015) (Jaguar Game) (Atari Jaguar)