TrueLab Games visits the American plains with Bison Storm. I couldn’t fault the game’s visuals but somehow felt it missed something. I’ll leave it at that.
High rollers will love this new slot as it packs a punch with a 25,000x the stake jackpot. A friendly warning: the volatility is extreme, to such an extent the Whizz team rates it a 10’er!
The grid sports a maximum of 4,096 ways to win and a 4×6 grid. Getting into the juicy stuff the slot offers an unlimited number of Free Spins and a Hot Mode. The latter feature is a special treat.
RTP and Symbols

The RTP of the Bison Storm slot sits at 96.14%. That’s decent for a high-volatility slot, though I prefer anything above 96.5%.
The bison symbol pays the highest, followed by wolves, eagles, and other wildlife icons. Lower-value symbols include the standard royals (10-A), which don’t contribute much to big wins.
The wilds appear on reels 2-6, replacing non-bonus symbols to help form wins. During the bonus game, they carry random multipliers of x2, x3, or x5, which boost payouts.
Besides, the wilds don’t come around as often as I would’ve liked in the base game. The scatter symbol triggers the free spins feature, where the real money-making potential lies.
Bonus Rounds

Free Spins
The free spins feature is the meat and potatoes section of Bison Storm. However, it’s a beast to try and trigger it. During the testing phase, the average trigger worked out to 120+ spins.
The free spins feature triggers when 3, 4, 5, or 6 scatters land anywhere on the grid. The number of free spins you receive is proportionate to the scatters. For example, 6 scatters award as much as 100 Free Spins.
Having played the slot for hundreds of spins the most free spins I got was 8.
Buy Option
Yes, there is a buy option, and thank heavens for that! Bison Storm gives you a choice between two feature buy options: “Free Spins” and “High Risk”. It’s expensive costing 100x to 1,000x your stake.
For example, if your average stake is $1 per spin the buy option will cost you $100, or $1,000. I tested the buy option at $1 opting for the 1,000x stake option.
I won $1,437 showing a profit of $1,337 in demo mode. Lucky me because most buy options don’t deliver this type of win on my first attempt.
Additionally, I won an extra 8 free spins when another 3 scatters populated the reels during the free spins. Please use the buy option with discretion because it can wipe out your bankroll.
Tips and Strategy
With Bison Storm being a high-risk slot, I go in knowing there will be dry spells. I play for small stakes first, letting me test how often bonuses trigger. If the base game feels too cold for too long, I switch sessions rather than chasing losses.
If you don’t want to slug it out the buy option is a good choice but don’t overuse it. After all, it is an extremely volatile slot game.
The free spins feature is the real goal here. The problem however is the average trigger is more than 120 spins making it a no-go for casual players.
It’s not the type of slot you’ll play for fun, apologies for sounding blunt here. Can I play the slot with a bonus? Yes, but O won’t recommend it because the volatility makes it hard to clear the WRs.
You can play the slot for fun with a small or large bankroll to strike it big. The best betting range for casual players is a maximum of $1.
Conclusion
Bison Storm packs a serious punch, but it’s not for the faint of heart. The visuals impress, and the max win potential is massive. However, the extreme volatility makes it a grind.
The free spins feature is brutal to trigger, and the base game can feel ice-cold. The buy option helps, but it’s a costly gamble. I wouldn’t recommend it for casual players or bonus hunters.
Circling back to the free spins it pays or it doesn’t pay, that was my experience at least. I played the slot for free for 800 spins.
I triggered the free spins feature three times for a top win of $1,437 at $1 per spin. What makes the feature pop if you get a bunch of multipliers the win can be astronomical.
Another slot with the same things Buffalo Bounty Lite is a worthy alternative. I prefer it to Bison Storm. It offers 4 jackpots of which the Grand Jackpot pays $500,000.
Furthermore, the RTP of 96.81% is higher, but the key to the big wins is to avoid the buffalo skill.