Demis Hassabis worked on the early stages of the game Black & White in the 1990s, which he says had probably the best learning AI in a game.

The checkable core is that Hassabis worked on the early stages of Lionhead's Black & White (released 2001, developed in the late 1990s). His hedged view that it had 'probably the best' learning AI in a game is opinion, so check it only for whether it is plausible (e.g. widely praised for its learning creature AI). True: credible records show he worked at Lionhead on Black & White in its early development, and the game is widely recognised for notable learning AI. Mostly true: he took part in its early development briefly or in a minor role, or the dates are slightly off. Mixed: his involvement is documented only weakly, or the game's AI is not generally seen as notable. Mostly false: he was at Lionhead but there is evidence he did not work on Black & White. False: records show he had no involvement with Black & White.

Set before the research began.

1. E1 Black and White's AI programmer just won a Nobel prize: 'an incredible honor, it's the big one really' PC Gamer · 9 October 2024

   “Hassabis worked for Bullfrog before attending university, and after graduation began working at Lionhead, where he was lead AI programmer on Black & White.”

2. E2 Demis Hassabis: AI researcher, entrepreneur & neuroscientist AI Magazine · 25 May 2022

   “Coming out of Cambridge with a double first-class honours degree, Hassabis joined Lionhead Studios, where he was the lead programmer for the game Black & White.”

3. E3 Playing God: The revolutionary AI that made Black & White still unforgettable Yahoo Tech (syndicated from Edge, Future plc) · 4 October 2026

   “This was and remains the game's secret sauce, never to be bettered by 25 years of subsequent releases in any genre.”

4. E4 Lionhead Studios - Wikipedia Wikipedia Own record

   “It was released in 2001 to widespread critical acclaim.”

Two independent sources say Hassabis joined Lionhead after Cambridge and was lead AI programmer, or lead programmer, on Black & White (E1, E2). E4 dates the release to 2001, which fits his description of working on the early stages, though no source gives his exact dates. The view that its learning AI was 'probably the best' is opinion, and it is plausible. E4 says the game was widely acclaimed, and a games-press retrospective (E3) says its creature AI has not been bettered since.