Big Bucks Buffalo GigaBlox Slot Review
Sunrise over red-rock country, a buffalo plain baked in golden-hour haze, and reels set in a frame of split, sun-bleached fence rails. Big Bucks Buffalo GigaBlox looks the part, but the wilderness isn’t the real game: it’s a coin-collection round where merging blocks double a prize over and over.
ReelPlay built it as a 6-reel, 4-row slot with 40 paylines, running at 96% RTP with medium-high volatility, a 21.05% hit frequency and a ceiling of 16,298x the total bet. The studio made its name on the 10K Ways format, and sister titles like Atlantis 10K Ways and 10000 Wonders 10K Ways share that taste for big grids and bigger multipliers. Bets run from 0.40 to 14 per spin.
Base Game & Features
GIGABLOX
Gigablox are oversized symbols that land in formations from 2×2 up to 4×4 and count as the individual symbols they cover. Any symbol can arrive this way, including the wild and the scattered coin. There’s no waiting for them, either: every spin of the base game carries at least one Gigablox reel.
On a 6×4 grid with 40 lines, a 4×4 block of a high symbol covering the leftmost reels can complete several lines in a single drop. The same works in reverse, since an oversized block of a low symbol can just as easily crowd out a promising reel. Every spin carries that possibility in both directions.
Wins pay left to right on adjacent reels only, the highest combination counts on each line, and coinciding wins on different lines are summed. Only positions containing the winning symbol count towards that symbol’s win, and all pays are multiplied by the total bet rather than a line stake.
The wild substitutes for everything except the coin, and six wilds on a line is the richest single pay in the game. The coin also carries its own paytable line values, but its main job is to trigger the respin round.
Paytable
Pays below are per line at the default 1.20 total stake:
- Wild: six pays 7.50, five 3.00, four 1.50, three 0.50
- Top high symbol: six pays 5.00, five 2.00, four 1.00, three 0.375
- Second high symbol: six pays 4.50, five 1.80, four 0.90, three 0.375
- Third high symbol: six pays 2.50, five 1.00, four 0.50, three 0.25
- Fourth high symbol: six pays 2.50, five 1.00, four 0.50, three 0.25
- Low symbol one: six pays 1.25, five 0.50, four 0.25, three 0.125
- Low symbol two: six pays 1.25, five 0.50, four 0.25, three 0.125
- Low symbol three: six pays 1.25, five 0.50, four 0.25, three 0.125
- Low symbol four: six pays 1.25, five 0.50, four 0.25, three 0.125
The four low tiers pay identically, so the spread between the top of the paytable and the bottom is wide: a six-of-a-kind wild returns fifteen times what six lows do. With a hit rate of 21.05%, roughly one spin in five returns something, and most of those will be low-tier.
Gigablox formations narrow those gaps, because a single oversized block can complete multiple lines at once. Whether that block is helpful or in the way is down to which symbol it carries.
Big Bucks Buffalo GigaBlox Bonus Respins
Trigger and Respins
Landing six or more coin symbols triggers the Bonus Respins feature. The coins lock where they fell and the rest of the screen goes to work:
- Three respins are awarded
- Each coin carries a random multiplier between 1x and 1,000x
- All coin and MEGA COIN symbols are held; every remaining position spins
- Any new coin that lands is held and resets the respin count to three
- The round plays at the lines and bet of the triggering spin
That reset rule is the engine of the feature. A round doesn’t end until three consecutive respins pass without a single new coin, so a steady drip can keep a round alive far beyond its opening three spins.
MEGA COINS
Coins sitting wholly in a square formation of 2×2 or larger combine into a single MEGA COIN, an oversized symbol that replaces everything that formed it. The rules around them:
- A MEGA COIN’s value is twice the sum of the multiplier values of all combining symbols, including already-multiplied MEGA COIN values
- 2×2 and 3×3 MEGA COINs can combine with further coins or MEGA COINs into larger ones
- MEGA COINs cannot be split to form larger ones
- Creation is processed largest formation first, then top to bottom, left to right
- Merges are checked again at the end of every respin
The doubling is what makes the feature tick. Because a MEGA COIN’s value is twice the sum of its parts, a block of already-merged coins is worth far more than the coins that went into it, and every further merge compounds that. The bigger the block grows, the faster its value climbs.
The round ends when the respin count reaches zero or every position holds a coin or MEGA COIN. At that point the total value of all held symbols is multiplied by the total bet and paid out. A full screen of merged coins climbing through successive doublings is the whole appeal of the feature.
Buy Bonus
There’s a buy option for players who’d rather skip the wait:
- Cost: 3,200x the base bet
- The feature plays at 40x the base bet
- The purchased spin always lands six or more coin symbols
- Buy Bonus RTP: 97.0%
The base bet is the total bet divided by 40, so at the default 1.20 stake the purchase costs 96.00 and the feature plays at 1.20. A round playing at “40x the base bet” is simply the triggering spin’s total stake, restated.
The buy runs a point higher than the standard game’s return, though at this price it’s a serious commitment at any stake level.
Our Honest Verdict
Overall Rating: 7.2/10
Most of your time here is spent grinding a thin base game on a beautiful plain, waiting for six coins. That wait is the whole reason to choose it: the respin round is where every interesting thing in this game happens.
The merge maths is the strength, and it’s a real one. Doubling the sum on every combination means a screen fills with accelerating value rather than flat totals, and the reset-on-every-coin rule keeps a live round genuinely tense. The weakness is that everything around that round is underpowered: four identical low tiers, a one-in-five hit rate and a 14 ceiling on stakes make the long stretches between coins feel longer than they should.
It’s a good fit for players who love a hold-and-respin build and don’t mind quiet reels between rounds, and the sunrise setting makes the patience pleasant. Players who want frequent action or room to raise stakes won’t find it out here. For the patient ones, the plains give up their coins eventually, and when they merge, they merge big.
Big Bucks Buffalo GigaBlox FAQs
-
What is the RTP of Big Bucks Buffalo GigaBlox?
The RTP is 96%. -
Is Big Bucks Buffalo GigaBlox high volatility?
It’s a medium-high volatility slot, so wins can be spaced out with larger swings than a medium game. -
How do you trigger Bonus Respins in Big Bucks Buffalo GigaBlox?
Land six or more coin symbols. The coins lock in place, each carrying a random multiplier between 1x and 1,000x, and three respins begin. Any new coin that lands resets the respin count to three. -
How do MEGA COINs work in Big Bucks Buffalo GigaBlox?
Coins sitting wholly in a 2×2 or larger square combine into a MEGA COIN worth twice the sum of their multiplier values. MEGA COINs can keep merging with other coins into bigger ones, but they can’t split. -
What is the maximum win on Big Bucks Buffalo GigaBlox?
The maximum win is 16,298x the total bet. -
How does the GIGABLOX mechanic work?
Oversized symbols from 2×2 up to 4×4 land on the reels and count as the individual symbols they cover. Any symbol can appear as a Gigablox, including the wild and the coin, and every base-game spin has at least one Gigablox reel. -
Can you buy the bonus on Big Bucks Buffalo GigaBlox?
Yes. The Buy Bonus costs 3,200x the base bet, plays at 40x the base bet, and guarantees a spin that lands six or more coin symbols to trigger Bonus Respins. The buy runs at 97.0% RTP. -
Who makes Big Bucks Buffalo GigaBlox?
It’s made by ReelPlay, using Yggdrasil’s GIGABLOX mechanic under licence.
