There’s a whole section of the Aeneid that talks about their impromptu sporting matches (the description of the boxing gauntlets is particularly spicy).
“Romance of the Three Kingdoms” has multiple instances where generals arrange for games among their troops.
https://en.wikipedia.org/wiki/Camping_(game)
We could keep going; pankration, hoplidromos…
There’s a whole section of the Aeneid that talks about their impromptu sporting matches (the description of the boxing gauntlets is particularly spicy).
“Romance of the Three Kingdoms” has multiple instances where generals arrange for games among their troops.