Fair Odds Lab

SWAIN ADVISORY LTD

About this game

Fair Odds Lab is a social slot that shows you the math behind every spin, played with free virtual credits. Most slot games hide their odds. This one puts them on the screen and lets you test them yourself.

HOW IT WORKS
Choose a target return to player (RTP) of 88%, 92%, 96% or 98%. The game's engine instantly calculates how often each symbol should appear so that the theoretical return matches your choice exactly, and shows you the resulting probability of every symbol next to its pays. Then spin five reels across five paylines and watch your session statistics update after each spin.

MONTE CARLO CHECK
Want proof? Tap Simulate 100,000 spins. The game plays a hundred thousand spins in the background in seconds and compares the actual RTP with the target. It shows the deviation, the standard error and the hit rate, and gives a clear PASS or FAIL verdict based on statistics.

FEATURES

Selectable target RTP: 88%, 92%, 96% or 98%

Symbol probabilities solved mathematically for the chosen RTP

Weighted random number generator

5 reels, 3 rows and 5 paylines with highlighted wins

Live session stats: spins, wagered, won and session RTP

100,000-spin simulation with deviation, standard error and hit rate

Full paytable with the probability of every symbol

1,000 free starting credits with a reset whenever you need it

Works fully offline, no account and no ads

LEARN HOW SLOTS REALLY WORK
Fair Odds Lab is ideal for curious players and anyone who wants to understand probability, variance and why short sessions can look very different from the long-run average.

Download Fair Odds Lab now, collect your 1,000 free credits and start spinning!

This game is intended for adults 18+, uses virtual currency only, offers no real money gambling and no prizes of real value. Virtual credits cannot be purchased, withdrawn or exchanged for money. Success in social casino games does not imply future success at real money gambling.