The third Era has 7 cargo engines named after ancient gods & heroes, with one being a bonus engine.
You can open new engines by using research points generated by the Laboratory building within your Train Station. Only when you've researched the required pre-requisites, can you begin to develop the next engine. At the end of each era, a coupling system is available, allowing engines to transport goods from the next era.
If you want to compare all the engines, have a look at our Cargo Engine Comparison article.
Note: No passenger engines are available to research on the American Dream scenario.
Research Cost: 30 Research Points
Starting Stats:
• Cost: $250,000 • Tractive force: 2 • Reliability: 60%
• Acceleration: 05 /20 • Max. Speed: 125 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +15% Reliability | 8 | $30,000 |
| +1 Tractive force I | 16 | $90,000 |
| +1 Tractive force II | 17 | $95,000 |
| +3 Acceleration I | 6 | $25,000 |
| +2 Acceleration II | 3 | $10,000 |
| + 20 km/h Max. speed | 13 | $80,000 |
• The Tractive force II & Max. speed upgrades lead to a next Cargo Train: The Herakles
• The Tractive force I, Reliability & Acceleration I Upgrades lead to a next Cargo Train: The Dionysos
Requirements:
• Research the Odin
• Research its Tractive force II & Max. speed upgrades
Research Cost: 25 Research Points
Starting Stats:
• Cost: $300,000 • Tractive force: 3 • Reliability: 40%
• Acceleration: 10 /20 • Max. Speed: 150 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +10% Reliability I | 5 | $25,000 |
| +10% Reliability II | 5 | $20,000 |
| +4 Acceleration | 5 | $20,000 |
| +1 Tractive force | 20 | $100,000 |
| + 20 km/h Max. speed I | 12 | $70,000 |
| + 10 km/h Max. speed II | 5 | $35,000 |
• All of its Level I upgrades lead to the next passenger Train: The Ajax
• American Dream Scenario only: its Level I Reliability, Acceleration & Speed upgrades lead to the next Cargo Train: Prometheus
Requirements:
• Research the Odin
• Research its Tractive force I, Reliability & Acceleration I upgrades
Research Cost: 30 Research Points
Starting Stats:
• Cost: $400,000 • Tractive force: 6 • Reliability: 30%
• Acceleration: 01 /20 • Max. Speed: 75 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +10% Reliability I | 6 | $25,000 |
| +10% Reliability II | 6 | $25,000 |
| +1 Tractive force I | 12 | $75,000 |
| +1 Tractive force II | 10 | $65,000 |
| + 10 km/h Max. speed I | 13 | $70,000 |
| + 10 km/h Max. speed II | 11 | $55,000 |
• All of its Level I upgrades lead to the next Cargo Train: The Prometheus
Requirements:
• Research the Herakles
• Research all of its Level I upgrades
or on American Dream Scenario only
• Research the Herakles
• Research all of its Level I upgrades
Research Cost: 30 Research Points
Starting Stats:
• Cost: $350,000 • Tractive force: 4 • Reliability: 45%
• Acceleration: 16 /20 • Max. Speed: 80 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| + 10% Reliability I | 8 | $30,000 |
| + 10% Reliability II | 7 | $25,000 |
| + 1 Tractive force | 13 | $70,000 |
| + 4 Acceleration | 4 | $20,000 |
| + 10 km/h Max. speed I | 12 | $60,000 |
| + 15 km/h Max. speed II | 15 | $80,000 |
• All of its Level I upgrades lead to the next Passenger Train: The Artemis
• American Dream Scenario only: its Level I upgrades lead to the next Cargo Train: Osiris
Requirements:
• Research the Ajax
• Research its Max. speed I, Reliability I & Passenger upgrades
on American Dream Scenario only
• Research the Prometheus
• Research its Max. speed I, Reliability I, Acceleration I & Tractive Force I upgrades
Research Cost: 35 Research Points
Starting Stats:
• Cost: $250,000 • Tractive force: 4 • Reliability: 80%
• Acceleration: 04 /20 • Max. Speed: 90 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +15% Reliability | 9 | $40,000 |
| +1 Tractive force | 15 | $75,000 |
| +2 Acceleration | 6 | $30,000 |
| + 15 km/h Max. speed | 11 | $65,000 |
| + 15 km/h Max. speed | 10 | $60,000 |
• The Acceleration & Reliability upgrades lead to the next Cargo Train: The Morpheus
Requirements:
• Research the Artemis or the Osiris + their required upgrades
Research Cost: 45 Research Points
Starting Stats:
• Cost: $1,000,000 • Tractive force: 8 • Reliability: 50%
• Acceleration: 01 /20 • Max. Speed: 200 km/h
The Morpheus is a multi slot engine and takes 2 slots instead of only one.
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +15% Reliability I | 9 | $80,000 |
| +10% Reliability II | 6 | $50,000 |
| +2 Tractive Force I | 16 | $150,000 |
| +2 Tractive Force II | 13 | $125,000 |
| +1 Acceleration I | 15 | $150,000 |
| +1 Acceleration II | 10 | $100,000 |
| + 20 km/h Max. speed I | 9 | $100,000 |
| + 30 km/h Max. speed II | 12 | $130,000 |
• This is the last Train of Era 3. You need to research it and all of its upgrades to be able to research The Coupling for 60 Research Points
The Isis is the Cargo Bonus Engine of Era 3. It can be bought in
the Rail Nation Shop and can be won through the Lottery or by
entering competitions in Era 4.
Starting Stats:
• Cost: 2,500 Gold • Tractive force: 5 • Reliability: 85%
• Acceleration: 06 /20 • Max. Speed: 130 km/h
Note: The cost of the bonus train reduces if purchased in a later era.
The Passenger and Cargo bonus engines for an era can also be purchased as a bundle from the Rail Nation Shop.
You can install these upgrades:
| Upgrade | Upgrade Cost |
| +5% Reliability | 100 Gold |
| +1 Tractive Force | 100 Gold |
| +5 Acceleration | 100 Gold |
| + 20 km/h Max. speed | 100 Gold |