Legally, they must publish the rates (e.g., 0.6%). But algorithms can be opaque. Generally, math is just naturally brutal without pity systems.

How much is a 'spark'?

Usually 300 pulls. At $2.50 a pull, that's $750 for a jpeg of a waifu. Choose wisely.

No. The House always wins. The only winning move is to play for characters you love, not for 'meta' power.

Gacha Pit of Despair

Probability and 'Salt' accumulation forecaster.

📜 The Origins

Inspired by the high-stakes world of gacha gaming. This tool uses probability theory to check the 'Pity' threshold and emotional cost of a failed pull.

🚀 Master the Tool

Input your target's drop rate and your planned number of pulls. We'll visualize the exact likelihood of success and the resulting 'Salt' level if you fail.

Gacha Pit of Despair

Probability forecasting for the emotionally compromised.

Active Salt Accumulation

62%

Base Drop Rate (%)0.6%

Planned Pull Count80

Estimated Investment

$200

Pity Hard-Cap

90 PULLS

Outcome Forecast

38.21%

Total Success Probability

Psychological WarningSTABLE EMOTIONAL STATE

61.79%

Probability of “Total Shaft”

300$

Estimated “Sunk Cost” Trap

Pity Meta

Calculates the exact moment your luck is forced by code.

Emotional Debt

The non-refundable cost of expectations.

Currency Drain

Visualize how fast your gems become dust.

RNG Aura

Simulated luck based on celestial (random) alignment.

The Skinner Box

Gacha games (Genshin Impact, FGO, etc.) are casinos dressed up as RPGs. They rely on Variable Ratio Reinforcement: You know a reward is coming, but you don't know *when*. This floods your brain with dopamine in anticipation of the "Gold Light."

The Math of Pity

Most games have a "Pity System" (e.g., guaranteed 5-star at 90 pulls). * Without Pity: Probability is a cruel mistress. You could pull 1,000 times and get nothing. * With Pity: It turns gambling into a purchase... just a very anxious, expensive purchase.