Join an Indiana Jones style adventurer on a quest for hidden treasure in River of Riches, a 5 reel, 25 payline slot from Rabcat. The likeliest way to get your hands on the ancient Egyptian loot comes via the bonus feature that awards up to 20 free spins with sticky wilds. Head to the land of the Pharaohs from between 25p and £50 per spin.

There are of course plenty of treasure hunter themed slots but first impressions of River of Riches are positive – the setting is the dusty, deserted interior of an ancient pyramid. Symbols include lower value playing cards alongside the exterior of the pyramids, a scarab beetle, an ankh (cross) and a Tutankhamun style burial mask. Land 5 of the latter on 1 of the game’s 25 paylines and you’ll pocket a payout of 40 times your total stake.

Our mysterious archaeologist is the wild – he doesn’t offer any payouts in his own right but can help things along by replacing all other symbols apart from the scatter.

The red gemstone symbol is that scatter. Landing 2, 3, 4 or 5 of these anywhere on the reels will get you a payout of 2, 4, 10 or 50 times your total stake. Find 3 of them on the reels on a single spin and you’ll trigger Free Spins feature – here you’ll be awarded 10 free spins.

Your winning chances are boosted by the addition of up to 4 sticky wilds which will remain in place for the duration of the feature. 1 sticky wild can land on reel 2 with a further 3 able to hit on reel 4. It’s possible to re-trigger more free spins too. The sticky wilds will also remain in position for any extra spins you add to your tally.

River of Riches is pretty simple fare as far as features go with just the free spins on offer – we’d put it in the low to medium volatility range with the RTP at a more than reasonable 96.9%. The design is impressive, featuring quality visuals, silky animations and a brooding, slightly creepy backing track.

This slot hardly re-invents the wheel but what it does, it does well. If you fancy firing up a lovely to look at slot that offers simple, well-designed gameplay, then the treasure hunt that is River of Riches is one worth considering. If you like the adventure theme, I recommend you try Net Entertainment’s Gonzo’s Quest.