T.J. Fixman, writer of Ratchet & Clank current-gen series is leaving Insomniac to embrace a screenwriting career, he announced on his blog.

"It's 4:43 AM and I can't sleep. It's a mixture of fear and excitement and now, since I've accepted my fate, a cup of French Vanilla coffee," Fixman wrote. "I haven't felt this way in seven years, so I guess it's only fitting I bookend this chapter of my life with insomnia. Anyway, by now you've read the title of this blog so let's get to it: After seven years and nine games, I'm leaving Insomniac."

Fixman, who also contributed to Fuse's transition from campy humor to a "more sophisticated, dry wit," will stay around to help with the Ratchet & Clank movie script he wrote.

"So why does the title say 'sort of'? Because my relationship with Insomniac and the Ratchet & Clank franchise will continue," he wrote. "As a producer and writer on the movie, I will still be helping to shepherd Ratchet & Clank into the feature world. I've also made sure the North Carolina studio has everything they need to finish Ratchet & Clank: Into the Nexus, a truly awesome game I hope you all love.

"My relationship with Insomniac will continue, as will my involvement with the video game industry. How it will all coalesce is something I'll work out along the way, but I could never abandon the industry that has given me so much."

Since joining Insomniac in 2007, Fixman has worked on Ratchet & Clank: Full Frontal Assault, Overstrike, Ratchet & Clank: All 4 One, Ratchet & Clank Future: A Crack in Time, Resistance 2, Ratchet & Clank Future: Quest for Booty and Ratchet & Clank Future: Tools of Destruction.