oomfs might be interested: in 2022 meta trained an AI to play diplomacy & secretly enrolled it in a WebDip tournament
the paper they published:
noambrown.com/papers/22-Science-Diplomacy-TR.pdf
data for the games (chat logs + visualizer)
github.com/facebookresearch/diplomacy_cicero/blob/main/data/cicero_redacted_games/README.md

