Slot machines are the most popular casino game in the world, both at land-based casinos and on Internet gambling sites. Realtime Gaming, founded in 1998, is one of the major software providers for the online gambling industry. This article, the second in a series of five, discusses 11 popular 3-reel and 5-reel Realtime Gaming slot machines, including Crystal Waters, Derby Dollars, Diamond Dozen, Diamond Mine, Diamond Mkne Deluxe, El Toro, Enchanted Garden, Fame and Fortune, Field of Green, Food Fight, and Frozen Assets.

Before we proceed, let's review the basics of online slot machines. The main categories of online slots include classic 3-reel slots, video slots, and progressive slots.

Classic 3-reel slots are computerized versions of the slot machines that were invented by Charles Fey in 1887. Classic 3-reel slots are perfect games for the beginning player because of their easy and straightforward format.

Video slots are modern 5-reel slot machines. Many of the newer video slots have bonus features, such as free spins.

Progressive slots accumulate deposits from their players from a number of online casinos to create jackpots that grow by the minute.

Now we can proceed to Realtime Gaming's 3-reel and 5-reel slot machines.

- Crystal Waters is a 5-reel, 20 pay-line slot machine with a free spins feature. It accepts coins from $0.01 to $5.00, and the maximum number of coins that you can bet per spin is 1. The maximum jackpot is 4,000 coins.

- Derby Dollars is a 5-reel, 20 pay-line slot machine with a free spins feature. It accepts coins from $0.01 to $5.00, and the maximum number of coins that you can bet per spin is 1. The maximum jackpot is 3,333 coins.

- Diamond Dozen is a 5-reel, 20 pay-line slot machine with a free spins feature. It accepts coins from $0.01 to $5.00, and the maximum number of coins that you can bet per spin is 1. The maximum jackpot is 3,000 coins.

- Diamond Mine is a classic 3-reel, single pay-line slot machine. It accepts coins from $0.05 to $5.00, and the maximum number of coins that you can bet per spin is 3. The maximum jackpot is 2,500 coins.

- Diamond Mine Deluxe is a classic 3-reel, single pay-line progressive slot machine. It accepts coins from $0.05 to $5.00, and the maximum number of coins that you can bet per spin is 3.

- El Toro is a classic 3-reel, single pay-line slot machine. It accepts coins from $0.05 to $5.00, and the maximum number of coins that you can bet per spin is 3. The maximum jackpot is 300 coins.

- Enchanted Garden is a 5-reel, 20 pay-line slot machine. It accepts coins from $0.01 to $5.00, and the maximum number of coins that you can bet per spin is 1. The maximum jackpot is 5,000 coins.

- Fame and Fortune is a 5-reel, 20 pay-line slot machine with a free spins feature. It accepts coins from $0.01 to $5.00, and the maximum number of coins that you can bet per spin is 1. The maximum jackpot is 5,000 coins.

- Field of Green is a 5-reel, 20 pay-line slot machine with a free spins feature. It accepts coins from $0.01 to $5.00, and the maximum number of coins that you can bet per spin is 1. The maximum jackpot is 4,000 coins.

- Food Fight is a 5-reel, 9 pay-line progressive slot machine. It accepts coins from $0.01 to $5.00, and the maximum number of coins that you can bet per spin is 5.

- Frozen Assets is a classic 3-reel, single pay-line slot machine. It accepts coins from $0.05 to $5.00, and the maximum number of coins that you can bet per spin is 3. The maximum jackpot is 250 coins.

So there you have it, 11 popular 3-reel and 5-reel Realtime Gaming slot machines. Whether you play slots online or at a land-based casino, remember to gamble only with the money you can afford to lose. Decide beforehand how much you wish to spend, and don't exceed your spending limit should you lose. Finally, have fun and quit while you are ahead.