Probably the most well-known climbing game, it works on building memory and endurance. Choose a starting hold, and take turns adding on one move at a time. Sequences can be marked with chalk or memorized. You can specify holds for just hands, or both hands and feet. Try to make each move challenging for the other climber.
As one person climbs, the other person uses a stick or broom handle to point to the next hold the climber should aim for. Pick moves that will challenge your climbing partners but are not beyond their abilities. When the climber falls, switch places.
Agree on a sequence of 15 to 20 holds that each climber can send. After each successful climb, take away one of the holds. Continue removing holds until the climbers can no longer complete the route.
This game can be played alone or in pairs. Find a position on the wall. Keep both hands and one foot in place. See how many holds you can tap with the other foot. If you're playing in pairs, the person who can reach the most holds wins. This game works on reach and flexibility.
Just about any game that can be played on the ground can be played on the wall if you use your imagination. For children's climbing parties, play classic games such as tag, freeze or Simon says.