Online casino slots are developed by various casino software developers, who, in turn, sell them to the online casinos. Thus the developers make the games, and the casinos run them. This relationship adds credibility to the online slots games, and it assures the players that the casino companies will not tamper with the games to benefit themselves. All the online games have free modes where you can play for fun without wagering any real money. However, the most fun comes from the money mode where you get to win actual cash. Some of the most popular online casino developers include the following: Net Entertainment This company is popularly known as NetEnt, and it is one of the top online game developers in the world. The company mainly specialises in slots games and offers a collection of more than 200 games. Some of its popular slots games include Aliens, Pandora’s Box, and Reel Steal. Betsoft Betsoft might not be the biggest player in the industry, but it has carved out a position in the online casino game development industry. The company is the leading 3D game developer in the industry. Betsoft operates on a different model from the rest of the big players. They aim to perfect a small number of games and be the best in them. Thus, Betsoft games are popular due to their exciting graphics, and mobile friendliness. QuickSpin Quickspin is a leading firm in video slots. The Swedish firm is distinguished for its quality games such as Supernova and Beowulf. The company’s top management also has a great portfolio with the CEO having worked for Net Ent. Yggdrasil Yggdrasil is one of the new businesses that are rocking the online casino gaming industry. The company is less than five years old, and it has already won a bunch of awards for its innovative games, especially in slots. Some of its games include Rainbow Ryan, Nirvana and Super Heroes. These gaming slots are licensed to online casinos where players can log in to play. Some of the best casinos in the UK include SlotPrince.com, SlotTavern.com and FreeSpinsNoDepositNoWager.com. These gaming casinos run games from one or more of the famous game developers. There are hundreds of slots machines on these websites that a person can play in free mode. These three sites also occasionally offer free spins which give you a chance to win real money without having to spend a dime.