If you are looking to test your psychic abilities and may make a little money in online casinos, Hi-Lo games are perfect for you: the most basic of all possible card games is now at almost every internet game outlet. Available. The way Hi-Lo games for most online casinos work is simple. Bet and "extract" the virtual card from the standard game card of 52. Guess whether the next card is high or low - even more likely to pay when correctly predicting the color or suit of a given lottery.