1x2 Network
The studio behind Goldstar Express
Want the payout math behind the studio's design? Read the Goldstar Express RTP analysis.
Company History
Iron Dog Studio operates out of the UK under the 1x2 Network group and built Goldstar Express around a Hold & Win core.
Their site covers the full company history and the state of UKGC certification.
What They Do Best
Game Development
Iron Dog Studio leans into feature-dense Hold & Win slots — the Carriage Multiplier system here is a fresh spin on that formula.
Mobile-First
Iron Dog ships every title in HTML5, so the railway plays the same on desktop and phone.
Other Popular 1x2 Network Games
| Game | RTP | Max Win |
|---|---|---|
| Leprechaun Charms: Rainbow Jackpots | 95.07% | 5,000x |
| 3 Apex Treasures | 95.00% | 7,500x |
Fairness & Licensing
Independent labs certify every Iron Dog Studio release for RNG fairness. Coins land on the same odds in free play as they do for real money.
Why Goldstar Express?
Goldstar Express runs a 95.00% base with a 5,200x ceiling from Iron Dog Studio. Lock a full board of coins and the 5,000x MEGA stacks on your carriage haul — the guide below lays out how often that actually happens.