Introducing 21 or Bust: A Skill-Based PvP Evolution of Blackjack for iGaming Operators
Today, we’re proud to announce the launch of 21 or Bust, a skill-based PvP title inspired by Blackjack, now live on the THNDR platform and available for partners via our SDK.
How to start saving money
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Why it is important to start saving
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How much money should I save?
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What percentage of my income should go to savings?
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Introducing 21 or Bust: A Skill-Based PvP Evolution of Blackjack for iGaming Operators
At THNDR, we’re building more than games. We’re building infrastructure that addresses the core friction points in iGaming. Today, we’re proud to announce the launch of 21 or Bust, a skill-based PvP title inspired by Blackjack, now live on the THNDR platform and available for partners via our SDK.
Designed for the next generation of wagering products, 21 or Bust is a fast-paced, head-to-head competitive game where outcomes are determined entirely by skill. With asynchronous PvP matchmaking, identical game conditions for all players, and real-time Lightning Network payouts, the game is engineered to enhance engagement, retention, and revenue—without the regulatory and liquidity challenges that burden traditional formats.
This launch strengthens THNDR’s growing portfolio of skill-based titles and further expands the value of our cross-operator liquidity network, giving partners access to a consistent stream of player matches and seamless payment infrastructure.
Built for Business Impact
Like all THNDR titles, 21 or Bust is built from the ground up to solve key pain points in iGaming:
Key Benefits for Partners:
- Instant Liquidity: Players are matched across THNDR’s cross-platform betting network for a near-100% match rate.
- Skill-Based Format: Appeals to a broader player demographic and reduces regulatory complexity.
- Fast Monetization: Real-time, Bitcoin-based payouts eliminate chargebacks and waiting periods.
- Seamless Integration: Lightweight SDK with multi-currency support and no disruption to your core product.
Early adopters—including BetOpenly, Speed Wallet, Maincard, and Telobet—are already leveraging THNDR’s PvP suite to enhance their user experience while unlocking new monetization channels.
Game Format Overview
While inspired by Blackjack, 21 or Bust moves beyond the traditional dealer-versus-player setup. Players compete against one another by placing cards into four columns, attempting to create totals of exactly 21. The twist? Both players receive the exact same deck, in the same order, eliminating randomness and ensuring skill is the only differentiator.
Games are quick (up to 3 minutes), asynchronous, and optimized for mobile play. The scoring system rewards smart stacking, combo play, and risk management, while punishing mistakes with sharp penalties.
This structure not only fosters competitive integrity but also encourages high replayability and session volume—two of the strongest drivers of lifetime value.
Powering the Future of Competitive Gaming
THNDR is building a platform where real competition meets real infrastructure. With each new title, we’re providing partners with battle-tested games that:
- Increase engagement through skill-based competition
- Boost retention with fast, fair, and rewarding gameplay
- Unlock new acquisition pathways with low-friction, PvP-first design
21 or Bust is the latest step in this mission—and it's live now.
To learn more about integrating THNDR games into your platform or to see a demo of 21 or Bust, get in touch at hello@thndr.io.
Let’s build the next generation of iGaming together.
Des Dickerson
