The game of WHOT!, originally published in Britain by Waddingtons, has become popular in Nigeria, and versions of the cards are made locally.
Eléwénjewé is a fishing game for up to 5 players, in which a card can capture an equal card or a set of cards whose sum is equal to the played card.
I would be grateful for further information about these and other Nigerian card games.
The World Casino Directory includes a listing of Casinos in Nigeria.