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Nolimit City · extreme-volatility slots API
Nolimit City API: xWays, xNudge and 150,000x slots on your casino with one integration
Nolimit City makes slots for players who want the wildest swing in the lobby. SoftAggregator brings the studio's catalogue to your site through the same API and seamless wallet you use for every other game.
Nolimit City in one paragraph
Nolimit City is a Swedish slot studio, founded by Jonas Tegman in Stockholm on 1 January 2014, known for extreme volatility, dark themes and a set of trademarked mechanics whose names all start with an x. In August 2022 Evolution completed its acquisition of the studio, adding it to a slot family that already included NetEnt, Red Tiger and Big Time Gaming. The brand kept its own identity and release schedule.
For an operator, the short version is this: Nolimit City games attract a loyal, vocal audience of high-risk slot fans, and SoftAggregator lets you serve that audience through our game aggregator API without opening one more technical integration.
The x-mechanics, explained for a lobby manager
Each Nolimit City slot is built from a toolkit of in-house features. Knowing what they do helps you describe the games in your lobby, pick them for promotions and answer player questions.
Nolimit City mechanics at a glance
Descriptions follow the studio's own game pages
| Mechanic | What happens on the reels | Where you will meet it |
|---|---|---|
| xWays | A mystery symbol reveals a stack of one identical symbol, raising the ways count on that spin | San Quentin xWays (2021) |
| xNudge | A stacked wild nudges fully into view and raises its multiplier with every nudge | Deadwood xNudge, sequel to Tombstone |
| xBomb | An exploding wild clears nearby positions and bumps the win multiplier | Fire in the Hole |
| xSplit | A symbol splits the ones on its reel, doubling positions | Several later titles |
| Combined | xNudge, xWays and xBomb in a single game, up to 75,712 ways | Das xBoot (14 September 2021) |
Games that define the catalogue
Three titles show why the studio has a cult following: San Quentin xWays, Mental and Tombstone RIP. Each pushed the ceiling of what a slot could pay and each became a talking point among players and streamers.
- San Quentin xWays (2021): a prison-themed 5x3 slot, RTP 96.03% and a top win of 150,000x the bet according to the studio page, with Lockdown Spins, jumping wilds and three bonus-buy levels.
- Mental (2021): set in an asylum, max win 66,666x, famous for its uncomfortable art and a bonus that rewards patience.
- Tombstone RIP (2022): the Wild West sequel that raised the cap to 300,000x the bet, at an RTP of 96.08%.
- Fire in the Hole: the mining slot that introduced xBomb, max 60,000x, later followed by two sequels.
What players like is the tension. Base games are often quiet, then a single bonus can change a session. Many fans buy features directly, which suits short mobile sessions where nobody wants to wait two hundred spins for a trigger.
Extreme volatility and your cashier
The wallet flow is the same as for any slot, but the amounts are not. Expect larger debits from feature buys, long gaps without wins, and occasional very large credits. Build for those three things and Nolimit City runs smoothly.
Our callback calls your URL with GET, action=balance, debit or credit, integer amounts in minor units, a unique call_id and the round_id. A bonus buy on San Quentin can cost up to 2,000x the base bet, which arrives as one debit; the Lockdown Spins it unlocks are played inside the game and their total comes back as a credit that may have no debit of its own. Treat type as information only, never as a reason to refuse. If the player cannot afford the buy, answer error 1 with the current balance; for an invalid key or an unknown user, answer error 2. Always return HTTP 200.
Checklist before switching the studio on
- Confirm your amount fields hold large integers without overflow.
- Dedupe every credit and debit on call_id so a retried request never pays twice.
- Apply rollbacks (rb=1) to the original transaction.
- Store game_id exactly as the id_hash from getGameList, since reports and support tickets reference it.
- Use getPlayerHistory (up to 500 rounds, newest first, one merged entry per round) to answer "where did my bonus go?" tickets quickly.
Signature rules, parameter names and example responses are in the API reference.
Markets and currencies for Nolimit City players
Nolimit City's strongest audiences are experienced slot players: the Nordics, German-speaking Europe, Canada, Latin America and a growing base in Asia and the Middle East. You can give each of them their own currency when you create the player.
Native currencies we can set per player include SEK, NOK, DKK, EUR, CHF, PLN, CZK, HUF, CAD, BRL, MXN, ARS, JPY, KRW, TRY, AED and USD. For a currency outside that list, your account can run in USD or EUR while you convert for the player; ask us about your specific currency. The catalogue and currencies keep evolving, and the current state is always what getProviderList and getGameList return.
What SoftAggregator changes compared with a direct contract
Instead of one studio behind one integration, you get Nolimit City next to 40,000+ games from 200+ providers, under one set of keys. The commercial and technical relationship stays in one place.
Getting Nolimit City: side by side
| Topic | SoftAggregator | Direct studio route |
|---|---|---|
| Studios per integration | Nolimit City and the rest of the catalogue | Nolimit City only |
| Funding | Prepaid credit, live credit bar, low-balance alerts | Separate invoicing per studio |
| Reports | Bets, wins, RTP%, GGR per game and player, in real time | Studio back office |
| Brands | Several sites, one account, each with its own callback | Set up per site |
| Support | 24/7 on Telegram and e-mail | Studio account manager |
If your players also bet on sport, the same wallet can serve our sportsbook integration, so a player who wins on Tombstone RIP can place a football bet without moving money.
Questions operators ask about Nolimit City
Can I get Nolimit City games without integrating Evolution directly?
Yes. Nolimit City titles are in the SoftAggregator catalogue, so you launch San Quentin, Mental or Tombstone RIP with getGame and settle them on your own seamless wallet, the same way as every other studio we carry. No separate studio integration is needed on your side.
What is xWays in Nolimit City slots?
xWays is a special symbol that reveals a stack of identical symbols when it lands, which multiplies the number of ways to win on that spin. xNudge, xBomb and xSplit are the studio's other named mechanics: nudging wilds that grow a multiplier, exploding wilds, and symbols that split and double the positions on a reel.
Will a 150,000x win break my wallet callback?
No, as long as your credit handler accepts large integers and does not cap amounts. The win arrives as an ordinary credit in minor units, tied to the round_id of the spin or the purchased bonus. Make sure your balance column and any sanity checks allow it.
Does the Nolimit City bonus buy work through your API?
Yes. Feature buys run inside the game; your wallet simply sees a debit for the purchase and later credits for the result. Nothing extra needs to be integrated.
Can I show Nolimit City slots in demo mode?
Where the game supports it, getGameList flags play_for_fun_supported, and getGameDemo (or getGame with play_for_fun) opens a fun-mode session that touches no real balance.
Sources and last update
Game data (RTP, max win, mechanics) comes from Nolimit City's own game pages; corporate dates from Evolution's press releases.
- Nolimit City game pages: San Quentin xWays, Mental, Tombstone RIP, Fire in the Hole, Das xBoot, Deadwood, consulted September 2026
- Evolution press release "Evolution completes acquisition of Nolimit City", 8 August 2022
- SoftAggregator API documentation (docs.html)
Last reviewed: 24 September 2026.
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