Safe Smash

A multi-step crash-style game where players hit a safe with a hammer, accumulating multipliers with each hit — but risk the hammer breaking at any time.

Property	Value
Game ID	safe-smash
Type	multi_step
Volatility	High
Max Win	25× bet
RTP Range	85–99.99% (configurable)

Game Mechanic

1. Player places a bet
2. Server determines the safe's crack threshold (9–20 hits) and the multiplier pool
3. Each hit awards a random multiplier from the pool
4. The hammer may break on any hit — ending the round with 0× payout
5. Player can cash out after any successful hit to keep accumulated winnings
6. If the safe cracks (all hits completed), a jackpot chance triggers

Safe Crack Threshold

The number of hits required to crack the safe is determined at round start:

• Minimum: 9 hits
• Maximum: 20 hits
• Determined by the provably fair RNG

The player does not know how many hits are needed until the safe cracks.

Multiplier Pool (RTP_96)

Each hit draws from this weighted multiplier pool:

Multiplier	Weight	Probability
0.0×	150	15.0%
0.1×	200	20.0%
0.2×	180	18.0%
0.5×	150	15.0%
1.0×	120	12.0%
1.5×	80	8.0%
2.0×	50	5.0%
3.0×	40	4.0%
5.0×	30	3.0%

Hammer Break Probability

The probability of the hammer breaking varies by RTP variant:

RTP Variant	Break Probability per Hit	Avg Hits Before Break
RTP_92	~12%	~8
RTP_94	~10%	~10
RTP_96	~8%	~12
RTP_97	~6%	~16

INFO

The hammer break is determined at round start (not per-hit), ensuring provably fair verification. The break point is a specific hit number, not a probability roll per hit.

Jackpot

When the safe cracks (player completes all hits without the hammer breaking):

• 30% chance of triggering the jackpot bonus
• Jackpot multipliers: 5×, 10×, 15×, 20×, 25× (weighted selection)
• Jackpot multiplier is added to the accumulated total

Jackpot	Weight
5×	40
10×	30
15×	15
20×	10
25×	5

Cash Out

• Available after the first successful hit
• Cashes out the accumulated multiplier × bet amount
• Not available during the jackpot bonus
• Triggers round.completed webhook with endReason: 'cash_out'

End Reasons

Reason	Description
busted	Hammer broke — player loses bet
jackpot	Safe cracked + jackpot triggered
game_over	Safe cracked, no jackpot
cash_out	Player cashed out voluntarily

Example Round

Hit 1: 0.5× (accumulated: 0.5×)  → Continue or cash out?
Hit 2: 1.0× (accumulated: 1.5×)  → Continue or cash out?
Hit 3: 0.2× (accumulated: 1.7×)  → Continue or cash out?
Hit 4: 2.0× (accumulated: 3.7×)  → Cash out! → Payout: 3.7× bet