Ainsworth is the solid Australian gaming software developer. Their games began to appear in casinos in 1995 and since then, we have seen some truly fantastic titles from the development team from Australia. As you check their casino games selection, you may always come across an interesting online slot. Play this progressive animal-themed free game, spend a great time and win awesome prizes! It has thirty payout lines, five reels and three rows. Bet per spin range from as little as 0.01 to 3000 for all thirty paylines. This slot has bright visuals. The game has a good free spins bonus feature, the wilds (known as substitute symbols), scatter symbols. The RTP value of Big Thunder is 94.38%. The opposite number would be the House Edge, which in this is 5.62%. We really like that it has progressive jackpot feature which is quite unusual (as the slot is played, the jackpot increases). It is always there waiting, but you can also win decent amounts with other features, especially with free spins. The variance of this game can probably scare some people off, but you can always adjust your bankroll and betting limit accordingly. There's always a potential for big winnings. Now, while the main goal is to bring home the progressive jackpot, you can still expect a big win in the base game.
After playing it, our team found out, that this online slot holds somewhat special visual impression and we find enjoyable playing it. Initially you can try your luck and play it at freeslots99.com free. And after that, choose from many online casinos that have this slot and play it there. The game is present in many great Ainsworth casinos, including for example RioBet, Zig Zag 777, Goliath, Videoslots, Campobet, King Billy, Alf, Red Ping Win, Midaur, Bob, OrientXpress, bCasino or a casino of your own choice. Just make sure it is a supervised, reliable source that provides good options.