i tested game theory with jev.

@SimplerMayank mayank · Sep 18, 2026 · case #424628 · listed via Jev Hub

Still from the clip posted with this case; watch it in the original post on X.

Ran Jev through 40 rounds of prisoner's dilemma, where it averaged 2.28 points per round and cooperated about 20% of the time.

The original post

i tested game theory with jev. put it into prisoner's dilemma, and it beats tit-for-tat as well. across 40 matches, it averaged 2.28 points per round and cooperated only ~20% of the time. its strategy resembled Always Defect and Grim Trigger

Engagement when collected

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Numbers are a snapshot taken from X when the case was added to the library (schema v1, collected 2026-09-19); they will not match today.

Where this case fits

Filed under games & playable demos. In the pattern Jev is built for, the model answers a bounded question per step — and ordinary code acts on the answer, because the answer is already a value rather than a paragraph. Other posts in the same family are on the games & playable demos page.

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