Return figure
Every RTP is matched to the provider's material, including which bet types it applies to and what happens at the top stake.
Jasper treats every game page as a set of claims to be proved. He recomputes odds, payouts and caps, compares each figure with the provider's material and sends a page back until the numbers agree.
Six checks run on every page before it is published, and again whenever the provider updates the game.
Every RTP is matched to the provider's material, including which bet types it applies to and what happens at the top stake.
The chance of each bet winning is recomputed from the number of outcomes it covers and compared with the figures on the page.
Every multiplier, ladder and ceiling is compared with the provider's description, value by value.
Stake ranges, payout caps and win limits are only stated when a source publishes them; otherwise the page says they vary.
Each pound example is recalculated independently, and the result must match to the penny.
Claims that imply certainty or guaranteed outcomes are removed, and each page must carry a clear safer-gambling note.
My background is in probability and payout verification. I spent years checking paytables and rule sets against the mathematics behind them, and one lesson has stayed with me: a figure changes a little every time it is copied from one page to the next, and after a few copies it may no longer mean what it did.
Live game shows make this harder than slots. A return figure loses the bet type it belongs to, a maximum multiplier drops the cap that limits it, a rule about a bonus gets shortened until it says something else. Each shortcut looks harmless, and together they give readers a picture that the game does not match.
So my role here is narrow and deliberate. I do not write the pages; I try to break them. I recompute every probability and example, I compare each claim with the provider's material and, when two sources disagree, I insist that the page says so rather than picking the more exciting one.
If a source does not publish a figure, the page says so instead of guessing.
The author supplies a source for every figure, and I open each one myself.
I compare the draft with the sources and mark every mismatch, however small.
Marked drafts go back, and the author answers each point before anything moves on.
I approve the page only when every mark is closed, and the update date is recorded on it.
Verity Colquhoun researches and writes each game page, starting from the provider's rules and rebuilding the arithmetic herself. See how she works.