Katie Combs: Riches of the Lost City Slot Review
Katie Combs: Riches of the Lost City is a dice-style video slot from Air Dice with a distinctive layout: four separate 3×3 boxes.
Instead of classic symbol payouts, you score points by lining up matching dice horizontally or diagonally, then push for bigger outcomes through two bonus modes.
Below you’ll find the key facts, a simple guide to the points system, and how the Treasure Vault and Gold Compass bonuses can boost results.
Key facts at a glance
| Provider | Air Dice |
|---|---|
| Game type | Video slot (dice-style) |
| Release date | 15 Sep 2023 |
| RTP | 95.50% (can vary by casino/version) |
| Volatility | Medium |
| Max exposure | 1,000× |
| Layout | 4 boxes (3×3 each) |
| Paylines | 5 per box (20 total) |
| Min / max bet level | 0.10 – 100.00 |
| Main features | Treasure Vault bonus, Gold Compass wheel, Mystery Games, multipliers |
| Theme | Adventure, treasure hunt, compass, ruins, dark blue & gold palette |
Air Dice games can be deployed with different configurations depending on the casino and market. Always confirm RTP and bet limits in the game’s info panel before real-money play.
How the game works
Each spin resolves across four mini-grids. To score, you aim to line up three identical dice symbols in a row or diagonal.
Each symbol is worth a different number of points, and the game uses a points threshold to decide whether a spin pays.
Quick play steps
- Set your bet level (start low while you learn the pace of point wins).
- Spin and watch all four 3×3 boxes resolve.
- Look for 3-in-a-line dice matches (horizontal or diagonal) to build points.
- Trigger bonuses to unlock Mystery Games and multiplier boosts.
Bonus features
Treasure Vault Bonus
Triggered by landing three Bonus symbols. You start with a limited number of attempts and reveal tiles inside the vault.
Wins can refresh your attempts, and the round ends when attempts run out or the vault is fully revealed. Prizes can include extra points,
Mystery Games, and cash wins.
Gold Compass Bonus (Wheel)
Triggered by landing four Gold Compass scatter symbols. This activates a bonus wheel that can award instant prizes and Mystery Games.
A multiplier layer can increase wheel winnings, so this feature is often the fastest route to a bigger jump in payout.
What stands out
- Four-box layout creates a “multi-outcome” feel per spin
- Points-based wins rather than classic paytable-only payouts
- Two distinct bonuses (vault reveal + wheel spin)
- Mystery Games as a repeatable prize inside bonus flow
Medium volatility here usually feels like “quiet stretches + bonus spikes.” If you’re testing the game, keep a steady stake and measure how often you reach bonus triggers before scaling up.
Two similar dice-style games to compare
If you like the multi-grid dice format and bonus-wheel energy, these two are natural next clicks.
| Game | Provider | Why consider it |
|---|---|---|
| Mystery Deal Xmas | Air Dice | Another points-to-wheel setup with a festive skin and a similar “build toward the wheel” rhythm. |
| Random Reels Dice | Air Dice | A simpler 3×3 dice slot focused on fast spins and base-game results, great if you want fewer bonus rules. |
How we evaluate slots
- RTP transparency and whether multiple configurations exist
- Volatility fit for different bankroll sizes
- Bonus clarity: triggers, pacing, and prize structure
- Mobile performance and readability
Slots are entertainment with risk. Use limits and take breaks — see our Responsible Gambling guide.
FAQ
The listed RTP is 95.5%. Some casinos may run different configurations, so confirm the RTP shown inside your game’s info panel.
You win by lining up three identical dice symbols horizontally or diagonally to score points. Each dice type has a different point value, and the points total determines whether the spin pays.
The main features are the Treasure Vault Bonus (tile-reveal style) and the Gold Compass Bonus (wheel spin), both of which can award Mystery Games and boosted prizes.
The max exposure is 1,000× the stake.
Game Screenshots
