Warren Spector, the designer behind Deus Ex and a co-creator of System Shock, is retiring from game development. He announced it on LinkedIn on Monday night, with the usual caveat: he has been here before and changed his mind, but this time he is pretty sure he means it.

Spector’s career spans 44 years. He moved from tabletop RPGs to Origin Systems in 1989, where he co-produced Ultima 6 and Wing Commander, then went on to direct Deus Ex at Ion Storm and work on System Shock, Thief: Deadly Shadows and Crusader: No Remorse. He served as creative director on Disney’s Epic Mickey and co-founded OtherSide Entertainment. He puts the count at 17 full games and “9 or so” add-on packs, with teams ranging from a dozen people to 800.

The Deus Ex development team outside Ion Storm's offices, wearing team shirts

Why Warren Spector is retiring

I definitely have mixed feelings about this. I mean there are three games in particular I’d still like to make. (One is very big… one is very small… and one I don’t know how to make which scares me.) But the game business has changed and it’s just not as much fun for me anymore. Plus there’s a new generation of developers coming up who deserve their time in the sun.

Warren Spector, announcing his retirement on LinkedIn

Age and health are also factors, he wrote, and he feels he has done what he set out to do. What comes next is books, reading, lecturing, possibly some consulting, and “a keyboard here just waiting for me to get my piano chops back”. On a return: “Will I come back? Never say never.”

Warren Spector’s last game

His final release was Thick As Thieves, a stealth heist game that launched in May. Weeks later, OtherSide confirmed it had laid off the majority of its staff and ended planned post-launch development. His long-planned System Shock 3 has been effectively dead since 2022, when he acknowledged it was unlikely to happen.

Key art for Thick As Thieves, the stealth heist game from OtherSide Entertainment

His parting advice to the developers coming up behind him, via Video Games Chronicle: “your job is to make people forget people like me ever existed.” The full statement is on his LinkedIn page, as Aftermath and Shacknews noted in their coverage.

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Who is Warren Spector?

An American game designer who created Deus Ex and co-created System Shock. Across a 44-year career he also worked on Ultima, Wing Commander, Thief: Deadly Shadows, Crusader: No Remorse and Disney’s Epic Mickey, and co-founded OtherSide Entertainment.

What was Warren Spector’s last game?

Thick As Thieves, a stealth heist game released in May 2026. Weeks after launch, his studio OtherSide Entertainment laid off most of its staff and ended planned post-launch development.

Will Warren Spector make games again?

He has announced retirement before and changed his mind, and says ‘never say never’. His plans now are writing books, reading, lecturing, consulting — and, in his words, getting his piano chops back.