Rock-Paper-Scissors Portable - download and play. No installation needed.
You play against the computer. Here are the rules:
Rock beats Scissors
Scissors beats Paper
Paper beats Rock
First, choose a bet amount by clicking on the + and - buttons in the lower left corner of the screen. If you lose the game, you lose your bet amount. If it is a draw (both you and the computer make the same move), your bet is returned. If you win the game, you are paid 1.9 times your bet.
Winning Streak Bets:
You can also bet on a winning streak. To win the bet, you have to win many games in a row. Winning streak bets for 2, 3 or 4 matches are available. Choose one of them by clicking on the icon on the right hand side of the screen. You must win the corresponding number of matches in a row. Draw means you lose the bet.