Game Information
Provider
Mobilots
Type
Slots
Detective 221b Slot: Comprehensive Data Analysis
Core Game Specifications
| Attribute | Value |
|---|---|
| Developer | Mobilots |
| Release Date | 2019-02-13 |
| Theme | Detective, Victorian London, Mystery |
| Layout | 5×4 |
| Paylines | 30 |
| Bet Range | 1.5–150 |
| Core Mechanics | Moving Wilds that shift left each spin, Scratch‑card instant win bonus game, Free spins triggered by scatter symbol, HTML5 mobile‑friendly design |
| Technology | HTML5 |
| Platform | Mobile and desktop compatible |
Mathematical & Payout Model
Return to Player (RTP)
97%
Volatility
Medium
Max Win Potential
500x
Symbols & Paytable Hierarchy
| Tier | Symbol(s) | Function & Value |
|---|---|---|
| Low Tier | 10, J, Q, K, A | Provides small, frequent wins to maintain gameplay. |
| Mid Tier | Villain, Beautiful Woman | Thematic items offering moderate payouts. |
| High Tier | Sherlock Holmes | Highest paying symbols. Top hits available with full combinations. |
| Wild | Magnifying Glass | Acts as a substitute / feature trigger per game rules. |
| Scatter | Violin | Triggers free spins / bonus round when enough appear. |
Detective 221b Bonus Features Mechanics
| Feature | Trigger | Initial Award | Core Mechanic | Enhancement/Retrigger |
|---|---|---|---|---|
| Moving Wild | Magnifying glass Wild appears | Wild substitutes for other symbols and moves left one reel each spin | ||
| Scratch‑card Bonus Game | Three or more pistol bonus symbols | Scratch cards reveal instant prizes until villain appears | ||
| Free Spins | Three or more violin scatter symbols | 5, 10 or 20 free spins | Free spins awarded based on number of scatters |
Frequently Asked Questions (FAQ)
| What is the maximum win multiplier? | The top possible win is 500× your stake. |
| What is the RTP of the game? | The return‑to‑player rate is 97%. |
| What volatility level does the game have? | The game has medium volatility. |
| Does the game have a bonus game? | Yes. A scratch‑card bonus game is triggered by pistol symbols. |
| Are there free spins? | Yes. Free spins are triggered by violin scatter symbols. |
| Does the Wild symbol move? | Yes. The magnifying glass Wild moves one reel to the left each spin. |
| What is the bet range? | Bets range from 1.5 to 150 per spin. |
Detective 221b Performance Summary: Strengths vs. Weaknesses
Strengths
- High RTP
- Engaging moving Wild mechanic
- Multiple bonus features
- Mobile‑friendly design
Weaknesses
- Max win potential is modest
- No multiplier feature in base game
Overview
Detective 221b is a Sherlock Holmes‑themed video slot by Mobilots. It features a 5‑reel, 4‑row layout with 30 fixed paylines. The game includes moving Wilds, a scratch‑card bonus game, free spins triggered by scatter symbols, and medium volatility with a 97% RTP.
Rachel Pine is our slots expert who has worked in the online gambling industry for 10+ years. Over the course of her career, Rachel has reviewed more than 30,000 slots.
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