The game is played on 5 reels with 3 rows of symbols. It is striking that you can choose 10 paylines or 20 paylines. This makes no difference to the payout percentage, but it does to the payouts. Do you play 20 paylines? Then you pay twice as much, but the prices are also worth twice as much.
So it just depends on your preference, do you prefer to play with a little more or a little less risk?
The minimum bet is €0.10 per spin, the maximum bet is €10 per spin.
The payout percentage of La Gran Aventura is unknown. Too bad, because that way you don't know exactly how much this video slot pays out on average over the long term. Most Amatic slots pay out around 96%, but we understand that online casinos can choose a payout percentage themselves. So it could just be a bit higher, but it could also be a bit lower.

To keep things a bit clear, we look at all prizes based on 10 paylines. If you play with 20 lines, you can double all the amounts below.
The wild symbol replaces all other symbols except the scatters and also pays the most: 100 x the total bet.
With 5 of the same on an active payline, the three explorers are all worth 50 x the bet. The medium symbols (including a compass, a lamp and a leather bag) pay out between 20 x and 25 x the bet for every 5-of-a-kind.
The card symbols J, Q, K and A all pay out 15 x the bet with 5 of the same on one of the paylines.

The 3 or more scatter symbols (the huge jackhammers that make the journey possible) activate the free spins bonus.
You now win 10 free spins where 1 of the 3 researchers acts as a sticky wild. You can decide for yourself which one that is.
This bonus can pay out very nicely if you manage to spin a lot of sticky wilds at the start of the bonus feature.