About the Author: Declan Armstrong
About Declan Armstrong
Declan Armstrong is a professional Game Mathematician currently working at Easygo Gaming, one of the leading online casino game development studios. His work centres on the numerical architecture behind random-number-generator (RNG) products — the mathematical frameworks that determine how games behave, how frequently they pay, and how engaging they are for players over time.
Declan's expertise spans a range of interconnected disciplines including probability theory, statistical modelling, volatility analysis, return-to-player (RTP) calibration, and long-run simulation design. His background gives him a uniquely analytical perspective on the online casino industry — one that goes far beyond surface-level comparisons to examine the underlying mathematical reality of how games and casinos actually work.
Expertise and Focus Areas
- RTP and Hit Frequency — Understanding how return-to-player percentages are set, verified, and what they mean for players in practice
- Variance and Volatility — Analysing the risk profile of casino games and what high/low volatility means for player bankrolls
- RNG Design — The mathematics behind certified random number generators and game fairness
- Game Balance — How mathematical choices by developers shape both entertainment value and long-term profitability
- Simulation Modelling — Building statistical simulations that predict game outcomes over millions of rounds
- Casino Bonus Mathematics — Evaluating wagering requirements, expected value, and true bonus value for players
Why Declan Reviews 21Bit Casino
As someone who works in the casino game development industry, Declan brings a perspective that most casino reviewers lack: deep mathematical literacy. When reviewing 21Bit Casino, he doesn't just look at promotional claims — he examines the actual provider lineup, the quality and provenance of RNG certifications, the mathematical fairness of bonus structures, and the statistical likelihood of player satisfaction given the game mix on offer.
His reviews are crafted to help Australian players understand what they're actually getting — not just the marketing version, but the mathematical reality underneath it.
Writing Philosophy
Declan's approach to writing about casinos is grounded in clarity and honesty. He believes that players deserve to understand the mathematics of what they're playing, without having that information buried in jargon or obscured by promotional content. His goal is to demystify the numbers: what does a 96.5% RTP actually mean for a session? How does a x40 wagering requirement affect your true expected return on a bonus? These are the questions he answers.
Connect with Declan
- LinkedIn: linkedin.com/in/declan-armstrong-4384251a3
- Workplace: Easygo Gaming
Article first published: January 2024. Last updated: September 2026. All reviews by Declan Armstrong reflect his independent professional assessment and are not influenced by affiliate compensation arrangements.
