South African and Mozambican board games?
If you are looking for localised versions of games through Africa another option to the Mancala family are games of the Nine Men's Morris family, which potentially migrated down through Africa at the height of the Roman empire.

For South Africa there is Muravava or Umlabalaba, which is closer to Twelve Men's Morris in that there are more moves available.
In Mozambique you'll find Gulugufe, which is played on two intersecting triangles. There is also Ntchuva, which is the local variant of Mancala.