Callum Dreyer
About Callum
Editor Callum Dreyer Reviewer & Editor-in-Chief at PragmaticSpins.com With eight years of expertise examining individual slot mechanics, RTP calculations and bonus features, Callum is one of the independent gaming review sites key authorities on Pragmatic Play games.
Before setting up PragmaticSpins, Callum worked as a data analyst for a casino consultancy based in Malta where he provided advice to casinos looking to optimise their game mixes and better understand player behaviour. This analytics background is brought to bear in every casino review, with few sites able to match the level of empirical detail provided.
Reviews on PragmaticSpins are based solely on the real time session data of Callum, a highly experienced slot player who makes a significant investment of time playing games in both demo mode and paid play before even considering writing about them. The RTPs quoted in all reviews are verified by cross checking with a range of sources including but not limited to, official game PR Sheets, SlotCatalog audits and official compliance documentation provided by Pragmatic Play.
Areas of Expertise
We take return-to-player, hit frequency and variance indices for all suppliers and go very deep into the underlying mathematics such as the source of volatility and expressing the casino edge as a variance or standard deviation.
Holds specialization in documenting Hold & Win, Tumble, Multiplier Trail and Bonus Buy mechanics and is focused on making their documentation as accurate as possible with respect to the trigger conditions.
Knowledge required of UKGC, MGA, Curaçao and Gibraltar regulatory bodies and how they affect the flexibility to design casino games.
Our Mobile Optimisation test attempts to fill every slot on both iOS and Android platforms to see how it responds. The test checks whether it is rendered responsively, that all necessary actions can be performed via touch and that the layout is correct.
Editorial Standards
All information on this site is provided for educational purposes only. For a more detailed explanation of our editorial rules please see our disclaimer. PragmaticSpins does not let either remuneration for affiliate links, casino bonuses from the casinos we list or information from slot suppliers influence the score of the games we test. Affiliate links are visible on all pages. All that we can find in the original game code from the slot supplier, and what is reported to us, we list here. In the case of Pragmatic Play, this information is updated on an occasional basis as they inform us of any code updates.
Callum is bound by the CAP Code for advertising in the UK, and all reviews posted are deemed appropriate for an 18+ audience and contain warnings about gaming.
⚠️ Editorial independence: As part of our editorial independence, PragmaticSpins may receive some commission revenues from affiliate links whenever you click and join in the casinos we recommend. In any case, the spin results, pay-outs and the documented RTP in the corresponding slot reviews remain uninfluenced. You can find the procedure how we check and verify this information in our Affiliate Disclosure.