double payouts in Giovanni's Gems slot machine

The double-up feature is available in various video slots from numerous software providers. It is also called a gamble game or a risk round. There are also other names. It is used not only in slots; for example, it is common in video poker. However, in this article, only slots are considered.

What Is a Double-Up Feature in Slot Machines?

Let us give a general definition of the term:

A double-up game is a round triggered at the gambler's request, in which they can try to increase the payout received during the spin.

In other words, players can activate this feature if they have a payout. During the round, they can multiply the money or lose it.

The Double-Up feature rules, essential versions, unusual variations, additional options, and pitfalls are discussed below.

Double-Up Game Variants

There are several main variations of the Gamble game. In addition, some software developers offer unusual types, sometimes surprising with their non-standard approach and creative thinking.

First, let's discuss the basic types:

  • "Guess the card color" is a widespread option most video slot manufacturers use. The player must guess the color of the next card in the deck. The correct answer doubles the payout, while the wrong choice deprives the player of the money at stake.
  • "Guess the card suit" is an option that often accompanies the "card color" option. The customer can try to determine the suit of the card. If he succeeds, the payout is quadrupled.
  • "Beat the card" is typical for video poker but is also offered in many slots. The gamblers choose one of the closed cards. If it beats the open card, the winnings are doubled. You can also lose money or draw the round. Some providers allow you to withdraw from the draw after seeing the card. This will enable you to play only in the most favorable situations.
  • "Heads or Tails" is also a popular option. The point is to guess which side the coin will land on. Betsoft and some other developers offer very colorful versions of this game. The player is usually confronted by the slot's main character appearing on the additional screen.
  • "Stairs"  is a very straightforward game. The player climbs the stairs. At each step, they either increase or decrease the payout. If they get to the bottom, they lose the bet. If they get to the top, they will get the maximum win. Sometimes, checkpoints are available, meaning a guaranteed victory of a certain amount.

Some brands offer two types of Double-Up rounds. 

a unique doubling game in Untamed Tiger slot machine

Now let's talk about the unique varieties of the Double-Up game in online video slots.

  • Thematic games are usually stylized variations of classic Gamble rounds. For example, Betsoft offers to play heads or tails against the main characters of slots.
  • Several manufacturers offer unique slot varieties, embracing non–standard approaches. One striking example is Microgaming's Untamed series, dedicated to wildlife. This series presents a unique risk game. The client must set the sector on a scoreboard, determining the odds of winning and the potential payout amount.

All slot reviews on Casinoz consider the rules of Double-Up games. If it is a classic version, the description is short. Unusual versions are described in more detail.

Money at Stake

The user can wager all the money received during the previous spin in the double-up game. This is the most common but not the only approach.

Many providers allow betting half the amount. In rare cases, you can change the bet in the risk game. In other words, you can bet any part of your payout.

Maximum Betting Limits

In almost all slots, you can play the double round several times in a row, but there are usually some restrictions.

  1. Limits of attempts: Many developers allow you to play no more than a certain number of times in one session, but some providers do not set such limits.
  2. Payout limits: The maximum amount that can be won during the round is specified in the paytable or Help section. Usually, it depends on the bet size.

Carefully read the terms of the Double-Up game to avoid misunderstandings.

Tips on Double-Up Game in Slots

Indeed, many readers have already asked themselves:

How to play the Gamble game in slot machines? Do I even need to take part in this round? Should I go all the way hoping for maximum gain, or is it better to stop at some intermediate stage?

First, in most Double-Up games, there is no house edge. Thus, it is worth trying. 

risk – doubling game in Christmas Carol slot machine

How many times in a row should you play? Theoretically, the doubling game is more profitable than the base spins, so fighting the casino here is better. But remember that a small win is always preferable to a significant loss. You should know when to stop.

Where Can You Play Slots with a Double-Up Feature?

All the best internet casinos offer extensive selections of slot machines with Gamble games. Listing them all is impossible, so let's highlight a few reputable online casinos. Judging by numerous positive reviews from real customers, they can be trusted.

We would like to remind you that you can try free slots on Casinoz. Demos are available in game reviews.


Once again, each slot can have its peculiarities in the Double-Up feature. Always study the paytable and the Help section. Try free demo versions, which allow you to test slot machines for fun.

You can read an article about slot machine rules, learn general strategy recommendations, get acquainted with different game systems, and follow reviews of new machines. The writers from Casinoz regularly offer new pieces on this subject.

Frequently asked Questions

💲 What is a double-up game in slots?

This is an additional game available in many slots. It is optional. You can take part in it after you have received a payout. You wager the money trying to increase the sum, but you can also lose it. 

🤨 Are double-up games identical in all slots?

No, they are not. There are several classic versions, but some software providers offer unique variants. The main types include "Guess the Card Color," "Guess the Card Suit," "Beat the Card," "Heads or Tails," and "Stairs." Read about them on Casinoz.

❓ What are the chances of winning in slots' double-up games?

In most slots, the chances of winning in double-up games are 50:50. The casino does not have a house edge over players.

💲 How much money can players wager in the Double-Up game?

Players can wager all their winnings from the previous spin, although some games allow betting half or any portion of the amount.

🙋‍♂️ Are there maximum betting limits in the Double-Up game?

Yes, most games have limits on the number of attempts and the maximum amount that can be won during the round.

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