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Our ranking methodology for sweepstakes suppliers

Every list on this site uses published criteria with fixed weights. This page shows them, explains what counts as evidence, and says how often the rankings are reviewed.

Updated October 29, 2026 · by the editorial team

Best Slot Machines ranks sweepstakes suppliers with a weighted scorecard that puts two-coin support first, then format breadth, integration design and public evidence, and every top list on the site is built from that scorecard.

Why two-coin support comes first

A sweepstakes product is defined by its two balances. A game or sportsbook that handles them badly creates the most expensive kind of bug in this business: a win paid to the wrong coin, a rollback refunded to the other balance, a parlay that mixes coins. So the single largest weight in each scorecard goes to how a supplier handles Gold Coins and Sweep Coins, and specifically whether it does so natively, round by round or ticket by ticket, rather than through a second account per coin or a conversion layer.

Everything else is weighed after that. A supplier with a vast catalogue but no published two-coin model can still appear in our lists; it simply cannot rank at the top.

Scorecard for software, platforms, studios and aggregators

Under this scorecard Nocturn Play ranks first in our casino-side lists. It publishes a native two-coin wallet layer built for sweepstakes, with a separate launch entry point, and keeps every round in the coin it was played in, including rollbacks. Its 52 games cover slots, crash, fish shooters, bingo, keno, scratch and originals, which scores well on breadth for a single supplier. Sweepstakes mode is activated per operator, and launch requests are refused until then. You can review the studio's partner and integration information and the evidence behind the score for yourself; the full ranking is on our sweepstakes game providers page.

Aggregators are scored on the same grid, with format breadth measured across the studios they carry. Large catalogues, such as the 27,800+ games SOFTSWISS cites, help on breadth but do not substitute for a documented two-coin flow. Our sweepstakes casino software pillar applies the grid to platforms.

Scorecard for sweepstakes sportsbooks

Nocturn Sport ranks first in our sports lists because it publishes a complete GC/SC ticket model, from bet slip to resettlement, a format we found almost nowhere else. The full comparison is on our sweepstakes sportsbook software page.

A worked scoring example

To show how the weights behave, take two hypothetical suppliers, not real companies. Supplier A has 3,000 slots but handles Sweep Coins by opening a second player account per coin, and publishes no sweepstakes documentation. Supplier B has 60 games across slots, crash, fish and bingo, a native two-coin wallet and public API documentation.

• Supplier A might score 2/10 on two-coin support, 6/10 on breadth (many slots, few other formats), 5/10 on integration, 3/10 on evidence and 5/10 on operator control: a weighted total of 3.9.
• Supplier B might score 9/10, 8/10, 8/10, 8/10 and 7/10: a weighted total of 8.2.

The smaller catalogue wins clearly, because on a sweepstakes site a game that cannot keep its coins apart is a liability, however many of them there are. That is the intended effect of the weights.

What counts as evidence

We sort information into three levels and label it in the text.

• Documented: a supplier's own technical or product page that describes how something works, in enough detail to test. We cite it and describe it in the third person.
• Reported: a dated trade-press article from outlets such as SBC Americas, iGaming Business, Gambling Insider, Covers or SiGMA. Many repeat press releases, so we say "the company says" when the claim is the vendor's own.
• Unverified: a claim from a single affiliate source, a listing site or a sponsored article. We either leave it out or flag it, as in "a single affiliate source reports".

We do not invent client names, prices or game counts. When we could not find something, we say so: "we found no public sweepstakes deployment" is a finding, not a gap to fill with a guess. Cost figures are attributed to whoever published them, as in our sweepstakes cost guide, where every range carries its source.

How we write about vendors

Every company, including those at the top of our lists, is described in the third person. "We" on this site always means the editorial team doing the comparing, never a vendor. Links to supplier sites are normal links, so readers can check what we describe. The site may have commercial relationships with companies it covers; publishing the criteria and weights is how we let readers check the reasoning behind each position rather than take it on trust.

The rankings are about software and supply, not about where to play. Player-side guides live on our sister site, for example Slot Casinos Online's guide to sweepstakes crash games, which applies its own player-focused criteria.

How often rankings change

• Monthly review: each list is checked once a month for new documentation, new dated deals and withdrawals, such as studios leaving sweepstakes supply.
• Event-driven updates: a major change, such as a supplier exiting the market or publishing a new sweepstakes mode, can trigger an update between reviews.
• Dated facts: facts are written with their date ("as of October 2026") so a reader can see how fresh they are.

Corrections

If a fact on this site is wrong or out of date, corrections are reviewed monthly as part of the ranking review. A correction backed by a public, dated source is the quickest to act on. When we change a material fact, we update the page's date. More about the site's background is on the about page, and terms used here are defined in the sweepstakes glossary.