RTP, house edge and volatility: three different questions
Separate mathematical return from session results and payout variability, using the target RTP values in the Hangar game registry.
3 min readRead guide
The Hangar field guideFor builders & operators
Understand the game.
Inspect the system.
Practical explanations of the maths, engineering and decisions behind a game platform. Start with a question. Follow it to the source.
Explore 6 guides 3 topics · Worked examples · Source references
Editor's starting point · EngineeringWhat does
What does
“provably fair”
actually prove?
A seed, a commitment and a result. Follow the evidence—and understand where it stops.
Read the guideINSIDE THE VERIFICATION
01
Commit
↓SHA-256(serverSeed)02
Derive
↓HMAC(seed, client:nonce)03
Reveal & compare
✓Same inputs. Same result.Reproducible ≠ independently held
Choose your direction
Three ways into the platform.
01 /
Game mechanics
Understand the probabilities, payout rules and verification methods behind the games.
2 guides02 /Engineering
Follow a transaction from the browser to the ledger, and examine the limits of the demo architecture.
2 guides03 /Operations
Read the numbers, trace operator decisions and evaluate controls across the platform.
2 guidesThe reading list
Start with a better question.
How Minefield turns safe picks into a multiplier
Work through the probability and payout of a 25-tile Mines game, with an engine-generated table for three mines and five safe-pick targets.
3 min readRead guide
What a provably fair check actually verifies
Trace a published seed commitment through HMAC and an Updraft outcome, then separate reproducibility from server custody and payout correctness.
3 min readRead guide
One bet, one debit: tracing wallet retries and settlement
Follow Hangar’s operation IDs, bet references and ledger checks through a repeated request, a win and a refund.
3 min readRead guide
Reading a game back office without mixing the numbers
Distinguish turnover, payouts, GGR, demo NGR and net deposits with a worked example and the definitions used by Hangar.
3 min readRead guide
Following a safer-play control across every game
Inspect how Hangar applies deposit limits, breaks and reality checks to shared platform services, and where browser-based enforcement ends.
3 min readRead guide
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