Card Game Development

I need to develop a real cash card game. The game should be designed to support both single-player and multiplayer modes. While I have not specified a particular card game like Poker, Blackjack, or Solitaire, I am open to developing a different card game that can engage users in both modes.

Key Requirements:
- Develop a card game that supports both single-player and multiplayer modes.
- The game should involve real cash transactions.

Ideal Skills and Experience:
- Experience in developing card games.
- Proficiency in creating both single-player and multiplayer gaming experiences.
- Knowledge of integrating real cash transaction systems.
- Ability to work with various card game formats beyond Poker, Blackjack, and Solitaire.