Final answer:
The men outside the bunkhouse are playing a game called 'digging a cellar', which is likely a barn.
Step-by-step explanation:
The men outside the bunkhouse are playing a game called 'digging a cellar'. In the text, it is mentioned that the men are digging a cellar, which is likely a barn. This activity can be seen as a game because the question asks about the game the men play. The game may be used as a way to pass time or as a form of entertainment for the men.