Role reversal - Each player brings an army for his opponent to play with.
Carnage - four players, each start in one corner of the battlefield, objective sits dead in the middle. Random turn length kicks in turn five - game ends that turn on the roll of a 1, a 2 on turn 6, a 3 on turn 7 and so on. Whoever is closest to the objective when the game ends wins.
Meeting engagement - each player deploys two units. at the start of each player's turn they can bring on an extra unit.
Good ground for a stand - one player sets up all the terrain and their army. The other player then picks a larger army to attack. Victory points are scored for defending units that survive/are wiped out respectively.
Clash of the titans - Both sides can only pick models with the monster keyword.