
Negative carryover is conditional — the no-NCO waiver only holds if you refer at least one FTD every 6 consecutive months; break the chain and negative balances carry forward uncapped, penalising low-volume/long-tail SEO. NGR is also heavily diluted by Estonia's gaming taxes and fees, and bank-wire payouts require a high €1,000 minimum.
Editorial
SoftSwiss-owned, Estonia-regulated single-brand (Kingswin): stable, Affilka real-time + S2S, up to 50% RevShare. But Estonian gaming taxes compress the effective rate and NCO waiver only holds with ≥1 FTD every 6 months. Grade B, Provisional.
House Grade
Medium
~30%
By negotiation (AM)
Monthly
Yes
Yes
Medium
~30%
By negotiation (AM)
Monthly
S2S Yes / API Yes
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The Earn Big Affiliate program is best suited for established iGaming affiliates and high-volume media buyers who can maintain a consistent flow of monthly player acquisitions. For these partners, promoting a heavily regulated, direct-advertiser brand equipped with conversion-boosting tools like Trustly Pay N Play and flexible crypto-fiat pathways offers stellar, secure revenue potential with up to 50% standard RevShare. However, smaller-scale, seasonal, or long-tail SEO publishers must proceed with caution. The high €1,000 bank wire threshold and the strict conditional negative carryover policy mean that a single lapse in monthly player acquisition can trap commission capital and carry over negative balances indefinitely.
Earn Big Affiliate is the official, direct-advertiser platform for Kingswin Casino, a long-standing brand established in 2012 with roots dating back to its incorporation in Estonia in 2008. Offering immense counterparty stability compared to typical offshore shell companies, the program is operated by Befuria GO OÜ, a heavily regulated Estonian private company under EMTA (Estonian Tax and Customs Board) oversight. As the program's sole flagship promotional asset, Kingswin Casino primarily targets players in the Baltic regions (specifically Estonia) while actively expanding into the Scandinavian market.
To drive player acquisition, Kingswin Casino features a competitive game catalog of over 2,000 titles from 20 premier software developers alongside an enticing welcome package of up to €555 (or 1 BTC) and 155 free spins featuring a player-friendly 30x wagering requirement. Conversions and player retention are further accelerated by Trustly’s Pay N Play system, enabling instant, account-free registration and rapid under-24-hour bank withdrawals. Under the hood, the program is powered by SoftSwiss’s robust Affilka platform, giving partners access to real-time tracking, S2S postback capabilities, and Reports API access.
Commission Type
RevShare, CPA Available, Hybrid Available
Commission Details
RevShare 25-50%
Payout Frequency
Monthly
Min Payout
20 EUR
Admin Fee
Yes
Negative Balance
Reset
License
Estonia (ETCB)
Founded
2018
Software
Affilka
Branded Traffic
Forbidden
NGR Formula
NGR = Bets - Admin Fee - Bonuses - Chargebacks - Fraud - NBC - Wins
Target GEOs
Restricted GEOs
Brands
1 casino brand running on this program is reviewed on CasinoMass:
Target GEOs
No reports filed against this program.
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N/A
On request
On request
—
On req.
On req.
N/A
On request
On request
—
S2S On req. / API On req.
N/A
~45%
$400
Weekly / faster
Yes
Yes
N/A
~45%
$400
Weekly / faster
S2S Yes / API Yes
Caution on terms, solid value — weekly+ payouts, crypto rails.

House Grade
Negative carryover applies by default; a written "no negative carryover" waiver must be negotiated with the affiliate manager. Branded/trademark search traffic is forbidden and can forfeit commission.
Medium
~15%
By negotiation
Weekly
On req.
On req.
Medium
~15%
By negotiation
Weekly
S2S On req. / API On req.
Weekly payouts, low $10 thresholds, deep crypto support and real-time stats on a competitive BetB2B sportsbook — but negative carryover applies by default (waivable only by negotiation). Best for advanced media buyers who lock in written terms with their AM.

N/A
On request
On request
Once a month
On req.
On req.
N/A
On request
On request
Once a month
S2S On req. / API On req.

House Grade
No public API (manual CSV export or Voonix middleware) and no crypto payouts. 30-day last-click cookie is shorter than the 60-90 day norm, favouring high-intent SEO/review traffic over long-funnel banners. The 'no negative carryover' policy has a €5,000 high-roller quarantine (big winners are isolated and carried against their own future play).
Low
~25%
By AM
Monthly (by the 10th)
Yes
No
Low
~25%
By AM
Monthly (by the 10th)
S2S Yes / API No
Rock-solid triple-licensed (UKGC/MGA/Sweden) casino with a spotless 9-year payment record, no NCO (bar a €5k high-roller carve-out) and no bundling. RevShare tops at 40% and there's no API/crypto. Best for UK/SE SEO and review sites.

House Grade
Session-based cookie — conversions not completed in the same browser session are lost, disadvantaging SEO/review traffic. Banned by Sweden's Spelinspektionen (2026) for unlicensed targeting; avoid Swedish traffic. High-roller isolation clause carries forward player losses over €10,000. Headline 90% RevShare is promotional and cut by an undisclosed (~25%) admin fee.
Medium
~40%
€800+
Monthly
Yes
Yes
Medium
~40%
€800+
Monthly
S2S Yes / API Yes
High-ceiling crypto-hybrid casino with fast pay and no negative carryover — but session-only cookies kill delayed conversions and it's banned in Sweden. Built for streamers and media buyers who convert in-session, not SEO review sites.