◉The Bought Round extra stake Open the partner account
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The Bought Round / how it works
what an extra-stake control is

What an extra-stake control actually changes

A normal round costs one stake and returns whatever the game returns. An extra-stake control inserts a second price on top of that first one: a fixed multiple for a bought round, a percentage added to every spin, or a stake placed on a win. Learning where the second price sits is the whole method, because everything a reader worries about - is the buy better value, is the ante worth it, does the cap catch me - is a question about that second price.

Desk spec
controls sampled
4
rounds sampled
1,200
a fixed multiple
the buy
a per-spin uplift
the ante
a doubled stake
the super stake
a stake on a win
the gamble
The control platesample A / 1,200 extra-stake rounds, four controls
feature buy100x stakeBuys one whole round at a fixed price. The stake moves from 1x to 100x in a single decision; the return is the bought round's, not the base game's.
ante bet+25% per spinRaises the price of every spin a little and the stated chance of reaching the feature a lot. It makes a non-triggering spin dearer and can make the route to the feature cheaper.
super stake2x per spinDoubles the stake for roughly double the quoted chance. It changes the size of the bet and the variance, not the expected cost of reaching the feature.
gamble0 until a winCosts nothing to be offered, then stakes a win on a double-or-nothing. It is the only control here that can take money already won and put it back at risk.
four controls, one thing in common: each changes what a round costs, and none changes what it can return beyond the game's own mathematics.
Direct answer

An extra-stake control adds a second price to a round. A feature buy adds a fixed multiple of the stake once, for a single round. An ante adds a percentage to every spin. A super stake doubles the price of every spin. A gamble adds no price at all until a win exists, then stakes that win. In every case the control changes the cost of the round, and only the game own mathematics decides what the round can return.

where the second price sits
controlwhat it addswhen it is charged
feature buya fixed multiple of the stake, 100x in the sampled gamesonce, at the moment of the buy, for one round
ante beta percentage on top of the stake, 25% in the sampleon every spin, whether or not the feature triggers
super stakea round multiple of the stake, 2x in the sampleon every spin the control is armed
gamblenothing until a win exists, then the win itselfonly after a win, and only if taken
each control moves the price of a round away from the base stake4

Price is not value

The single idea that makes the four controls comparable is that a price is not a value. The buy price is what you pay; the average return is what the round pays back; the difference is the edge. A buy at 100.00 with a 96.5% return is a 96.50 average - not a better round than a 1.00 spin, but a larger bet on the same mathematics. The ante and the super stake are the same idea spread across many spins, and the gamble is the same idea applied to money already won. None of them changes the edge; each changes how much of the reader money is exposed to it at once.

The same round, four ways the base game returns 96.0% of whatever is staked one spin, no control staked 1.00 -> returned 0.96 -> edge 0.04 one round, bought staked 100.00 -> returned 96.50 -> edge 3.50 one hundred spins, with a 25% ante staked 125.00 -> returned at the base rate 120.00 -> edge 5.00 one hundred spins, super stake at 2x staked 200.00 -> returned 192.00 -> edge 8.00 the edge is the same rate every time; only the amount exposed changes and only the buy publishes a return of its own
Reading any extra-stake control
  1. Find the price: a multiple, a percentage or a stake already won.
  2. Find the return: does the control publish a return of its own, or inherit the base game?
  3. Find the route: does it change the chance of reaching the feature, and by how much?
  4. Find the ceiling: does a maximum win cap what the control can return?
  5. Find the eligibility: does the round count toward a wagering requirement or not?
This desk prints invented prices and returns and names no real game or studio. The structure of an extra-stake control is general; the exact multipliers, returns and rules differ by game and by jurisdiction and are set by the game and its operator, not by this page.
The feature buyone round bought at a fixed priceThe ante beta percentage on every spinThe super stakea doubled stake for a doubled chanceThe gamblea win staked on a double-or-nothing