Crash & Instant Games

Crash and instant games, built in-house

A crash-style cash-out game, a mines-style pick-and-reveal, a tower ladder and an arcade launcher — five originals in total, each with four simulated RTP models and provably-fair verification on every round.

Why Instant Games

Short rounds, high frequency, no lobby fatigue

Instant games earned their lobby placement by being legible. A player understands a rising multiplier in about two seconds, and the decision — cash out now or hold — is the entire game. There is no paytable to study and no feature to unlock.

That legibility is why the format travels so well into crypto-native and mobile-first audiences, and why it sustains session lengths that slots often do not. It also makes the math unusually easy to explain to a regulator: one decision, one distribution, one cash-out curve.

Slotty Labs builds these formats first-party. The titles are original, the engine is the same one that runs the slot, and the evidence package is identical across the catalog.

What every title ships with
  • Four RTP models — 92 / 94 / 96 / 97%, each separately calculated and separately simulated.
  • 10,000,000-round Monte Carlo per variant, verified to within ±0.5% of theoretical RTP.
  • Provably-fair commit-reveal on every real-money round.
  • Server-authoritative outcomes with max win enforced server-side.
  • Desktop and mobile HTML5, demo mode included.
  • Deterministic replay of any round from its event log.
The Catalog

Five originals, four formats

Fox'n Flock — crash-style cash-out

The multiplier builds while the flock is in play; the fox can strike at any moment. Cash out too early and leave money behind, too late and lose the run. Medium volatility, 200× max win.

Safe Smash — mines-style pick & reveal

Each strike on the safe reveals the next rung of an escalating multiplier ladder. Bank the current multiplier or keep going and risk the bust. High volatility, 250× max win.

Bit Key Rush — tower / ladder

A step-by-step climb wrapped in a phosphor-green CRT hacking fantasy. Cash out available at every rung. High volatility, 500× max win.

Katapuuult — arcade launcher

Set the angle, charge the power, ride the flight — the multiplier grows with every meter of distance. Skill-flavoured interaction over simulated math. High volatility, 300× max win.

Slotty Slots — online video slot

The catalog's single-step title: 5×3, 20 paylines, wilds and retriggering free spins. Medium volatility, 500× max win — the workhorse that anchors a lobby.

One engine behind all five

Same RNG, same evidence format, same integration path. Adding the second title after the first is configuration, not a new project.

Fairness

Three layers of proof on every round

Instant games live or die on player trust — the format is so simple that any suspicion of manipulation is fatal. The answer is verification the player can run themselves.

A standards-based RNG

NIST SP 800-90A Rev. 1 HMAC-DRBG (SHA-512, 256-bit security strength) with multi-source entropy and continuous statistical self-tests based on NIST SP 800-22.

Simulated, not asserted, RTP

Every variant is verified across 10,000,000 fixed-seed rounds and lands within ±0.5% of its theoretical model. The written model ships with the simulation output.

Provably fair commit-reveal

SHA-256 seed committed before the bet, revealed after, verifiable by the player on a public page without trusting the operator or the studio.

FAQ

Crash and instant game questions

What is a crash game?

A crash game is a session-based casino format where a multiplier rises while the round is live and the player chooses when to cash out. Wait longer and the payout grows; wait too long and the round ends with nothing. The tension comes entirely from the player's own timing decision.

Does Slotty Labs offer a crash game?

Yes — Fox'n Flock is a crash-style cash-out game with a comedy-farm theme: the multiplier builds while the flock is in play and the fox can end the round at any moment. Medium volatility, 200× max win, four selectable RTP variants.

What other instant game formats are available?

Safe Smash is a mines-style pick-and-reveal game, Bit Key Rush is a tower/ladder climb on a retro CRT terminal, and Katapuuult is an aim-and-launch arcade game where the multiplier grows with distance.

Are the instant games provably fair?

Yes. Every real-money round uses SHA-256 commit-reveal — the seed is committed before the bet and revealed afterwards — so players can verify outcomes independently on a public verification page.

Can we choose the RTP?

Each title ships in four separately simulated RTP models — 92%, 94%, 96% and 97% — so the same game can be configured differently per market or per brand.

How are instant games delivered?

As HTML5 clients for desktop and mobile, embedded through a single-use 30-second RS256 launch token issued by the TypeScript SDK. Demo mode is included.

Play them before you talk to us.

The demo lobby runs the real clients. Then book a call and we will walk through the math models and the Monte Carlo output.

Book a Demo