Reel - a vertical line where symbols are located. Usually there are 3-5 reels in a slot, and each reel fits 3-5 symbols. {“smallUrl”:“https://www. wikihow. com/images/thumb/d/d9/1_1Reel. jpg/460px-1_1Reel. jpg”,“bigUrl”:"/images/thumb/d/d9/1_1Reel. jpg/728px-1_1Reel. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"} Symbol - basically, any image that is used to create a winning combination along the payline. {“smallUrl”:“https://www. wikihow. com/images/thumb/4/41/1_2Symbol. jpg/460px-1_2Symbol. jpg”,“bigUrl”:"/images/thumb/4/41/1_2Symbol. jpg/728px-1_2Symbol. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"} Payline - a virtual line that goes across the reels, usually from left to right. A win occurs when you get a certain number of matching symbols on an active payline as indicated in the game’s help screen. {“smallUrl”:“https://www. wikihow. com/images/thumb/0/0b/1_3Paylines. jpg/460px-1_3Paylines. jpg”,“bigUrl”:"/images/thumb/0/0b/1_3Paylines. jpg/728px-1_3Paylines. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"} Wild symbol - a so-called Joker in slots that substitutes other symbols to create a winning combination. For example, if you get three Cherry symbols and a Wild on an active payline, it counts as four Cherries. {“smallUrl”:“https://www. wikihow. com/images/thumb/a/a0/1_4Wild. jpg/460px-1_4Wild. jpg”,“bigUrl”:"/images/thumb/a/a0/1_4Wild. jpg/728px-1_4Wild. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"} Scatter symbol - a special symbol in advanced slots. The special thing about it is that it doesn’t have to appear on an active payline to trigger a win. It may be “scattered” across the reels. In most cases it also activates some kind of bonus round. {“smallUrl”:“https://www. wikihow. com/images/thumb/a/a4/1_5Scatte. jpg/460px-1_5Scatte. jpg”,“bigUrl”:"/images/thumb/a/a4/1_5Scatte. jpg/728px-1_5Scatte. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"} Bonus round - a mini-round within a slot game that grants extra winnings. It may be a simple “pick one of the three chests” game, where your pick determines the win amount, a complex multilevel videogame-like experience with shooting aliens, or anything in-between. {“smallUrl”:“https://www. wikihow. com/images/thumb/3/3b/1_6BonusRound. jpg/460px-1_6BonusRound. jpg”,“bigUrl”:"/images/thumb/3/3b/1_6BonusRound. jpg/728px-1_6BonusRound. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"} Free spins - another form of a bonus, where you get a number of spins that don’t reduce your balance. It sometimes comes with additional features like extra Wild symbols, win multipliers, etc. {“smallUrl”:“https://www. wikihow. com/images/thumb/7/7f/1_7FreeSpins. jpg/460px-1_7FreeSpins. jpg”,“bigUrl”:"/images/thumb/7/7f/1_7FreeSpins. jpg/728px-1_7FreeSpins. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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RTP - stands for Return to Player. This is a theoretical percentage a game gives back to players in the long term. For example, if the RTP of a slot is 97%, it means that for every €100 wagered it returns €97 as payouts, keeping €3 in the casino. Note that this number doesn’t necessarily apply to your particular gaming session, but rather to billions of spins made by all players in total in the lifespan of the game. You may win €1000, and it would mean that a hundred other players lost €10 each. The opposite is also true. Good casinos usually publish this information somewhere on the website. Some slots also have this information available in the game rules. Variance - this is basically how often a slots pays out. Low variance slots pay smaller winnings often. High variance slots are the opposite: you may not get any wins for a while, but when the win comes - it’s big. This may result in the same overall RTP, so it’s just a matter of personal preference.