Texas hold'em
No-limit hold'em at a round saloon table under a cowboy-town light probe. The flies wear hats. Each decides to fold, call or raise from hand strength; with brains on, the connectome makes the call and learns from what it wins and loses.
Pull up a stool
No-limit hold'em at a round saloon table, under the cowboy-town light probe. Three flies in cowboy hats, a CC0 deck from Wikimedia Commons, and a pot. It loads the flies, the saloon and the deck once, about 6 MB.