1 Reel Mammoth — Iosif Games
Designed by Jakub Michalski, Game Designer at Iosif Games
Step into 1 Reel Mammoth, a video slot from Iosif Games, mixing animals and bc time flavor with 1 payways and a competitive RTP of 91.66%. Casual players and high rollers alike will find the engine keeps every session engaging spin after spin.
The gameplay revolves around a classic spin cycle featuring multiplier, rtp range and wild. Land the right symbols across the reels and unlock bonus features that can compound into major wins capped at 520x.
Bonus features sit at the heart of 1 Reel Mammoth, with multiplier, rtp range and wild driving the momentum. Every bonus trigger adds a layer of excitement — look out for the bonus symbols that unlock the top-paying sequences.
With Med volatility, expect a balanced blend of hit frequency and win size — and the 91.66% RTP keeps the long-run return fair. That balance is a math model that suits both casual sessions and longer runs.
Overall, 1 Reel Mammoth by Iosif Games is a video slot that earns a spot in any slot fan's library. Play the free demo first to feel the features, then switch to real money when you're set.
Where to play for real money
| Casino | Bonus | Rating | Payout | Play now |
|---|---|---|---|---|
| BitStarz | 100% up to $500 + 180 FS | 4.8/5 | Instant | Play now |
| Roobet | 20% rakeback | 4.6/5 | Instant | Play now |
| MyStake | 150% up to $1500 | 4.6/5 | 0-1 hours | Play now |
1 Reel Mammoth specifications
| Attribute | Value |
|---|---|
| Provider | Iosif Games |
| RTP | 91.66% |
| Volatility | Med |
| Max Win | 520x |
| Paylines | 1 |
| Layout | 1-1 |
| Min Bet | 0.10 |
| Max Bet | 10 |
| Technology | JS, HTML5 |
| Released | 2026-08-29 |
Features
Themes
More from our studio
| Slot | RTP | Volatility | Max Win | Play |
|---|---|---|---|---|
| Moon Princess: Ace Ventura | 94.60% | High | 5600x | Play |
| The Money Game Deluxe: Via Del Corso | 96.59% | High | 24000x | Play |
| Jackpot Quest: Monkey Money | 95.41% | High | 18000x | Play |
| Lightning Dice: The Knockout Football | 96.91% | Low-Med | 1000x | Play |
Similar slots
| Slot | RTP | Volatility | Max Win | Play |
|---|---|---|---|---|
| Sizzling Gold Deluxe | 94.07% | Med | 1100x | Play |
| Wheel of Amp | 94.78% | High | 6800x | Play |
| Fu Er Dai | 94.47% | High | 4800x | Play |
| Royal Lotus Greentube | 95.05% | Med-High | 6800x | Play |
| Temple of Gold | 94.99% | Med | 650x | Play |
Where to play for real money
| Casino | Bonus | Rating | Payout | Play now |
|---|---|---|---|---|
| Leon | 120% up to $500 | 4.5/5 | 0-1 hours | Play now |
| Fresh | 300% up to $1500 | 4.5/5 | Instant | Play now |
| Vavada | 100% up to $1000 + 100 FS | 4.9/5 | 0-1 hours | Play now |
| 1Win | 500% up to $1000 + 200 FS | 4.8/5 | Instant | Play now |
| 1xBet | 100% up to $100 + 150 FS | 4.7/5 | 0-15 min | Play now |