Fa Chai Gaming

Open Vault

RARE Slots Video Slots Fantasy Vault Magic

Play Open Vault slot by Fa Chai Gaming for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

Only <0.01% of slots combine 1024 Ways and Random Bonus Symbols.

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SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

96.5%

return to player

Volatility

High volatility

variance

Max win

10,000×

top multiplier

Min bet

$0.10

per spin

Reels

2000 lines

Player rating

4.2 ★

20 votes

DEMO Play free, no signup

Fa Chai Gaming

4.2 / 5

20 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP9/10

RTP 96.5% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential8/10

x10000.00 (10000×) → 8.0/10

Features10/10

13 features → 10.0/10

Game Mechanics7.8/10

f=13 r=5 p=2000 → 7.8/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–100 (×1000) → 6.0/10

Provider Reputation7.2/10

provider avg 7.2 → 7.2/10

Popularity7.5/10

synthetic proxy → 7.5/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 83 — Open Vault by Fa Chai Gaming

https://slotranker.com/fa-chai-gaming/open-vault#score

How to cite

Spec sheet

Open Vault at a glance.

Identity

Slot nameOpen Vault

StudioFa Chai Gaming

Released

Math

SlotRanker Score83

RTP96.5%

VolatilityHigh volatility

Max win10,000×

Bet range$0.10 – $100.00

Player rating4.2 / 5 · 20 votes

Format

Reels5

Paylines2000

Layout5x3

Features

Themes

Expected average based on this slot's 96.5% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.40

Cost per session$1.40

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Open Vault? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: High

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (High). The model is calibrated so the average return equals this slot's published RTP (96.50%), with wins capped at its top multiplier (10,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Compare Open Vault with other games

	Open Vault Score 83This game	Ultra Cluster Kingdom Score 92	Serpentina Score 91	Pond of Plinko Score 91	Orient Story Deluxe Score 90
Identity
Studio	Fa Chai Gaming	GameArt	Massive Studios	Print Studios	Amusnet
Released	—	9/24/2024	3/20/2025	12/10/2024	5/2/2024
Math
RTP	96.5%	—	96.53%	96.1%	97.2%
Volatility	High volatility	High volatility	High volatility	High volatility	High volatility
Max win	10,000×	—	30,000×	30,000×	—
Format
Reels	5	8	7	5	5
Layout	5x3	8x8	7x7	5x3	5x3
Paylines	2000	Cluster Pays	—	20	20
Min bet	0.10	0.20	0.10	0.10	0.20
Max bet	100.00	200.00	100.00	30.00	400.00
Features
Progressive	—	—	—	—	✓
Wild symbol	✓	—	✓	—	✓
Free spins	✓	✓	✓	—	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	✓	—	✓	✓	✓
Bonus game	—	✓	—	✓	—
Respins	—	—	—	—	✓

Every number is shown as a delta against Open Vault.

Comparing against

Open Vault

Fa Chai Gaming

RTP

96.5%

Max win

10,000×

Score

Ultra Cluster Kingdom

+ Bonus Game− Wild− Multiplier

+ Bonus Game− Wild− Free Spins

+ Progressive+ Respins

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