Max win. The free spins feature is quite rare as it takes. Game Type. Thunderbird slot game is a medium to high variance slot machine that allows you to play for little stakes. The magical aboriginal thunderbird has risen from its ashes in the fun new line 5-reel Thunderbird Slot by Rival Powered, free to play at Slotorama! Release your spinning spirit with Thunderbird, a Native American themed slot machine by Rival Gaming featuring two rounds of free spins and expanding wilds. Send your wins flying sky-high in this collapsing, cluster-pays slot. %. Thunderbird is a 5-reel, line online slot game with download, bonus spins, instant play, autoplay, video slots, multiplier, wild symbol, expanding wild. Thunderbird Online Casino is made available to all existing Red, Silver and Gold members of Thunderbird Resorts and Casinos. Return to player. Thunder Birds Power Zones is a LiveBet Casino Slots Game produced by Playtech. Thunderbird. Slots. Thunderbird, a line, 5-Reel Slot with % RTP and includes free spins, 2x multiplier. Try Thunderbird slot online for free in demo mode with no download or no registration required. . It is a 5x3 slot with an RTP of per cent and 50 paylines. Thunderbird (Rival Gaming) is an online slot developed by Rival Gaming. %. Play for free or real money on Willis Casino. Return to player. Game Type. PLAY ANYTIME, ANYWHERE. Try Thunder Birds slot online for free in demo mode with no download or no registration required. Features include wilds.