A lot of two player war games are a full 8 hours of play for experienced players, if not multi-session. In my Battletech tabletop (which is a very simple game.

A lot of two player war games are a full 8 hours of play for experienced players, if not multi-session. In my Battletech tabletop (which is a very simple game...) group, with 6 players around the table and a full day we can usually only get 12-15 turns in, without advanced rules. That's partly why the "Grinder" format is so fun. If there's such an event at any conventions you attend, I strongly suggest trying it.