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Big Thunderin Demo Mode

Ainsworth

Big Thunder

Big Thunder is an old Slot by Ainsworth, released on October 12, 2013 (more than 5 years ago), and is available to play for free in demo mode on SlotsUp. Based on the monthly number of users searching this game, it has low demand making this game not not popular and evergreen in 2025. With 0 plays in the last 90 days (109 in total) and mixed feedback, this game is not trending among SlotsUp users, showing that they have mixed opinions about this demo.

94.38%

RTP

$0.01 - $3000

Bets Range

x90930

Multiplayer

35.29%

Hit Frequency

Medium

Volatility

Gamble

Game Bonuses

Wildlife

Slot Themes

Wild Symbol

Slot Symbols

Big Thunder

VS

Average Slot Game

Where to play Big Thunder for Real Money?

Medium

Safety index

70%

by SlotsUp

up to 2000 USD + 200 Free Spins

Ainsworth presented to the fans of the online video slots requiring no download their amazing slot promising the amazing adventures and the wonderful prizes! Explore the rain forests of Africa and you will find the big wins there! This amazing casino slot comes with 5 reels, 30 selectable pay lines, and 3 rows. The beautiful jungles, big apes, and the fantastic wins wait for you in Big Thunder casino free slot!

Find your Luck in the Jungle!

Big Thunder online slot comes with several special icons, which can increase your income and help you throughout the game. In this short tutorial, you will learn how to use them.

  • Gorilla – you can use this image to comprise the winning lines. This icon substitutes for all other images but the Game Logo and the Crown. During the base game, it appears on the 3rd, 4th, and 5th reels only.

  • Game Logo – 3 or more of these icons qualify you to play the bonus game. In the free spins mode, the 6th bonus reel is added. It contains additional Game Logo and x3 and x5 multiplier. The pay lines in bonus game pay in any direction.

  • Crown – appears on the bonus reel during the base game only. Using it, you can win one of the jackpots. The Crown on the 6th reel and the line consisting of the similar major icons without Gorilla wins Major Jackpot. The Crown on the bonus reel and 5 low icons of a kind of a kind without the Gorilla award Maxi jackpot. Get Minor jackpot landing the combination of major icons with the Gorilla and the Crown. Mini-jackpot is awarded if there's the Crown and low icons combination on the screen.

Rain of Prizes

Big Thunder slot game will charm it with its design depicting the jungle and its inhabitants and the wonderful features, which allow winning really great prizes!

If you decided to play the impressive Big Thunder slot, visit SlotsUp.com and find it among the other Ainsworth slots! To try any of the Ainsworth free slots games no downloads are needed on our website! If you are ready to play slot machines for real money online, we suggest you look at our list of the online casinos! Follow any link from this list and earn the real cash playing Big Thunder slot in approved casino!

Big Thunder logo
Big Thunder
Ainsworth