SpinOn API: a young Malta slot studio, from Gates of Thunder to Major Miners

Where SpinOn comes from

SpinOn is a slot developer founded by a team of industry veterans and headquartered in Malta. It announced its launch in July 2024 together with its first three games and a plan to release six slots in its opening months, distributed through Yggdrasil's YGG Masters programme.

The studio describes its goal as building a player community through strong stories and immersive gameplay. In practice that means clearly themed slots (thunder gods, a haunted graveyard, a mining crew) with several features stacked into each game, rather than one-trick mechanics.

The first SpinOn releases, game by game

SpinOn's early catalogue is small enough to know title by title, and each game has a distinct role. Here is what was published for the launch titles and for the first release of 2025.

Why players try SpinOn games

SpinOn slots give players several routes to a big result in each game. Book of Evil combines the classic book mechanic with a direct bonus buy, which pleases both traditional book-slot players and those who want the feature on demand. Gates of Thunder follows the mythological multiplier style that many players already search for.

Major Miners is the most layered of the set. Six or more bonus symbols start the Big Blast Bonus, where marked positions upgrade from bronze to silver, gold and diamond and reveal cash prizes up to 100x; three scatters spin the X-Pots wheel for multipliers or fixed jackpot prizes, the Grand being 5,000x. That gives the game two distinct bonus moments, which keeps sessions lively even when the base game is quiet.

For your lobby, SpinOn works as fresh content for players who have exhausted the better-known book and mythology slots and want something new with familiar rules.

SpinOn on your seamless wallet

SpinOn titles use the standard SoftAggregator wallet flow. Three patterns deserve a line in your test plan: bonus buys, feature payouts and in-game jackpot prizes.

1. Bonus buy. In Book of Evil, the 100x buy is one debit. On a 0.50 EUR stake that is 5000 in minor units.
2. Features. Free spins, the Big Blast Bonus and the Rockfall modifier are run by the game. Their wins come back as credits, sometimes without a debit in the same call.
3. X-Pots wheel. A jackpot prize from the wheel is just another credit on the same round_id. No contribution tracking, no separate jackpot feed.
4. Housekeeping. Deduplicate on call_id, keep game_id identical to the id_hash, apply rb=1 rollbacks once, ignore the type label for decisions, and always answer HTTP 200.

Signature (md5 of timestamp plus salt_key, valid 30 seconds), error codes and sample calls are in the SoftAggregator developer docs. getPlayerHistory, filtered by UTC dates, lets your support team replay any bonus round a player asks about.

Adding SpinOn in an afternoon

If you are already connected, adding SpinOn is a catalogue job, not a development job. That is the practical benefit of a casino game aggregator API: every new studio arrives through the same methods and the same callbacks.

• Refresh getProviderList and getGameList; SpinOn titles come with id_hash, game_type slots, image and demo flag.
• Place them in your new-releases row or in a book and mythology category.
• Launch with getGame for desktop or mobile, in the player's language and currency.
• After a few weeks, compare RTP% and GGR per SpinOn title in real-time reporting and adjust placement.

If you are not yet connected, the path is short: request access on the signup form, get approved, pick up your keys in the operator backend, point our callbacks to your wallet, and you can be live in days with 24/7 integration support.

Markets and currencies for SpinOn content

SpinOn's themes are universal, so the games fit European, Latin American, Asian and English-speaking lobbies alike. Players can hold EUR, GBP, SEK, NOK, DKK, PLN, CAD, AUD, NZD, BRL, MXN, INR, JPY, KRW, THB or USD natively, among others; the currency is fixed when you create the player. For a currency outside that list, your account can run in USD or EUR and you convert on your side; let us know which one you need.

Every session opens under your brand, and several websites can share one account with their own keys and callbacks. Our game aggregator API overview covers the rest of the platform. The catalogue grows continuously, and the SpinOn games available today are always those listed by getGameList.

SpinOn: operator FAQ

Sources and last update

SpinOn facts are taken from the studio launch announcement of July 2024 and from release announcements for each title.

• iGaming Business: SpinOn launch announcement, 15 July 2024
• Yggdrasil news: Book of Evil release with SpinOn, September 2024
• AGB: Major Miners release announcement, January 2025
• SoftAggregator API documentation (docs.html)

Last reviewed: 24 September 2026.

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