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Expanding symbols slots have been around for while, but with a recent rejuvenation in this dynamic reel mechanic from some of the best slot providers in the industry, these games are becoming more and more popular with online players. Learn more about slots with expanding symbols and play them for free through our informative and detailed reviews.
#Ad.18+. New players only. Min deposit £10. Bonus funds are 121% up to £300 and separate to Cash funds. 35x bonus wagering requirements apply. Only bonus funds count towards wagering requirement. £5 max. bet with bonus. Bonus funds must be used within 30 days, otherwise any unused shall be removed. Terms Apply. BeGambleAware.org
#Ad.18+. New players only. 18+. New players only. Min deposit £20. Bonus spins valid on Starburst only. Bonus funds are 100% up to £222 and separate to Cash funds. 35x (bonus only) wagering requirements. Only bonus funds count towards wagering requirement. £5 bonus max bet. Bonus funds must be used within 30 days, spins within 10 days, otherwise any unused shall be removed. Terms Apply. BeGambleAware.org
#Ad. 18+. New players only. One offer per player. Min Dep £10. Max bonus bet £5. 1st Dep offer is 100% up to £250 + 100 Bonus spins on Aloha Cluster Pays. Spins expire after 10 days, funds after 30 days. Bonus funds separate to Cash. Wager Req of 35x Deposit + Bonus apply. Terms Apply. BeGambleAware.org.
#Ad. 18+ New players only. 1 bonus offer per player. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds expire in 30 days, unused bonus funds will be removed. Bonus funds are 100 match up to £300 on your 1st deposit, 40% match up to £1000 on your 2nd deposit, and 80% match up to £500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute towards any wagering requirements. Terms apply. BeGambleAware.org.
#ad. 18+. All bonuses are valid for 30 days. Wagering requirement of 60 times the welcome bonus amount. Max bet £5 with bonus. Min refund is 10 GBP. Refund issued 24 hours after 1st deposit is lost. Welcome offer does not apply to players using Skrill or Neteller. T&C's Apply
#Ad.18+. New Players only. 1 offer per player. Min deposit £20. Max Bonus Bet £5. Bonus funds must be used within 30 days and bonus spins within 10, otherwise any unused shall be removed. 200 bonus spins valid on selected games only and credited at a rate of 40 bonus spins per day over 5 days, triggered on your 1st deposit. Bonus spins winnings credited as bonus & capped at £100. Deposit match bonus offers are: 1st dep: 125% up to £300, 2nd dep: 75% up to £300, 3rd dep: 50% up to £300, 4th dep: 25% up to £300, 5th dep: 100% up to £100. Bonus funds separate to cash funds & subject to 35x wagering. Only bonus funds count towards wagering contribution. Terms apply. BeGambleAware.org. T&C's
Below you can find our library of expanding symbols slots, each of these comprehensive reviews includes a free play demo so you can get to grips with the game, and experience all that you read about in our detailed slot articles.
During the bonus round on an expanding symbols slot, the specific symbol that you are allocated at the beginning of the free spins has the capability to trigger a reel expansion and fill all of the positions that are available on that reel. Generally you will need a minimum of 3 of the lower paying symbols to land for a reel expansion to take place, whilst premium paying symbols tend to cause the reels to expand for only 2 landing.
Not all slots that feature the expanding symbol can award you with multiple chances of reel expansions. The games that do facilitate this feature firstly require players to re-trigger the bonus round, once this has been achieved then an additional symbol can be added to your original icon. It should be noted that the slots that offer this feature can be re-triggered several times.
This all depends on the expanding symbol slot that you are playing. Some of these games will automatically choose your symbol at random for you, whilst others will give you the choice, which in effect means you get to select the volatility and potential outcome of your bonus.
You can play expanding symbols slots for a minimal cost and still experience all of the highs and lows that these games have to offer. Generally speaking you should be able to get the reels spinning on any slot that features expanding reels for €/£0.20 or less.
In the ever growing niche of expanding symbols slots there are now a huge selection available for players to try. We recommend that you try Book of Ra, Magic Mirror Deluxe 2, Gun Slinger Fully Reloaded, Rise of Merlin, Book of Dead, and Book of Gods.
Slots that feature the expanding symbol were first made popular with the release of Novomatic's Book of Ra slot, and since then countless clones of this game have been made. We still really enjoy playing the old games that have expanding symbols and reels as well as the new releases that keep popping up in casino lobbies.
Most players tend to have a favourite game they go to when wanting to play expanding reels slots, and more often than not it is Play'n Go's Book of Dead. More recently Big Time Gaming launched Book of Gods which peaked interest in these games again, and since then we have seen a flurry of new slots hitting the market including the first Megaways™ expanding symbols slots from Blueprint Gaming named Legacy of Ra Megaways™. In our opinion they are definitely worth trying out and through our free play catalogue of expanding symbol slots you can find out which one you like playing the most.