A computer programmed slot machine game will normally have 3, 5, 6, and 7 main spinning reels. They open up a possible 20, 30, and 50 betting lines, increasing the chances of a big payout on any given spin, but also, of course, simultaneously increasing the amount that one can lose as well. With more reels and higher bet increments available, Jackpots on some slot machines can reach up to a million credits or more on a single line.
These jackpots may take several different forms. Most commonly, the jackpot will be restricted to a single game, such as in Microgaming’s Mega Moolah or Real Time Gaming’s Shopping Spree. Some jackpots are linked to a batch of specific games, often sharing a common theme. The Marvel Comics series at Playtech and the Wonders series at NetEnt are two examples of this. Rarely, there may even be a site wide progressive that applies to all games, such as at WMS’s Jackpot Party Casino.
First of all, playing the demo version of any slot game will make you see if the marketing was simply hype or if you really enjoy the game's software. As you’re playing any free online slot, ask yourself a few questions, such as: What’s the RTP of this game? Is this slot high or low volatility? Is there a jackpot up for grabs? Does it have enough bonus rounds for my liking? Having your own checklist, tailored to your preferences, will ensure that you won’t waste money on slots you don’t like.
Alternatively, you can browse for games based on different criteria. You can find games by choosing a filter such as a software provider, paylines, reels, bonus game, progressive. As new are released, we’ll be adding them to this menu making sure you get your chance to review and have a go on the latest games for free, before you go off to play for real money at a casino you like.