The second Era has 7 cargo engines named after animals 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.
Research Cost: 25 Research Points
Starting Stats:
• Cost: $165,000 • Tractive force: 3 • Reliability: 50%
• Acceleration: 01 /20 • Max. Speed: 150 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +10% Reliability | 6 | $30,000 |
| +1 Tractive force | 10 | $60,000 |
| +1 Acceleration | 11 | $75,000 |
| + 15 km/h Max. speed I | 7 | $40,000 |
| + 10 km/h Max. speed II | 5 | $30,000 |
• The Acceleration Upgrade leads to a next Cargo Train: The Black bear
• The Tractive force Upgrades leads to a next Cargo Train: The Panther
Requirements:
• Research the Bat
• Research its Acceleration upgrade
Research Cost: 25 Research Points
Starting Stats:
• Cost: $175,000 • Tractive force: 4 • Reliability: 40%
• Acceleration: 15 /20 • Max. Speed: 70 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +15% Reliability I | 7 | $30,000 |
| +10% Reliability II | 5 | $15,000 |
| +4 Acceleration | 3 | $10,000 |
| + 10 km/h Max. speed I | 10 | $50,000 |
| + 10 km/h Max. speed II | 10 | $45,000 |
• The Tractive force I & Reliability I Upgrades lead to the next Cargo Train: The Lynx
Requirements:
• Research the Bat or Giraffe & the required upgrades
Research Cost: 25 Research Points
Starting Stats:
• Cost: $125,000 • Tractive force: 3 • Reliability: 70%
• Acceleration: 02 /20 • Max. Speed: 80 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +20% Reliability | 8 | $30,000 |
| +1 Tractive force | 13 | $80,000 |
| +2 Acceleration | 9 | $45,000 |
| + 15 km/h Max. speed | 11 | $65,000 |
• The Tractive force & Max. speed upgrades lead to the next Cargo Train: The Lynx
Requirements:
• Research the Rhinoceros + its Reliability upgrade
or
• Research the Whale + its Passengers & Acceleration upgrades
Research Cost: 25 Research Points
Starting Stats:
• Cost: $250,000 • Tractive force: 1 • Reliability: 50%
• Acceleration: 10 /20 • Max. Speed: 155 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +15% Reliability | 8 | $30,000 |
| +1 Tractive force I | 15 | $100,000 |
| +1 Tractive force II | 13 | $100,000 |
| +5 Acceleration | 6 | $25,000 |
| + 5 km/h Max. speed I | 5 | $25,000 |
| + 15 km/h Max. speed II | 10 | $55,000 |
• The Tractive force & Reliability upgrades lead to the next passenger Train: The Cheetah
• The Max. speed I & Acceleration upgrades lead to the next cargo Train: The Boar
Requirements:
• Research the Lynx
• Research its Max. speed I Acceleration upgrades
Research Cost: 35 Research Points
Starting Stats:
• Cost: $225,000 • Tractive force: 3 • Reliability: 50%
• Acceleration: 06 /20 • Max. Speed: 95 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +10% Reliability I | 6 | $20,000 |
| +10% Reliability II | 5 | $20,000 |
| +1 Tractive force | 11 | $70,000 |
| +3 Acceleration | 6 | $25,000 |
| + 20 km/h Max. speed | 16 | $90,000 |
• The Max. speed & Acceleration upgrades lead to the next Cargo Train: The Elephant
Requirements:
• Research the Boar or the Cheetah & the required upgrades
Research Cost: 40 Research Points
Starting Stats:
• Cost: $300,000 • Tractive force: 5 • Reliability: 30%
• Acceleration: 01 /20 • Max. Speed: 50 km/h
You can research & buy these upgrades:
| Upgrade | Research Points | Upgrade Cost |
| +10% Reliability | 6 | $25,000 |
| +1 Tractive Force I | 9 | $50,000 |
| +1 Tractive Force II | 8 | $45,000 |
| +1 Acceleration | 12 | $75,000 |
| + 10 km/h Max. speed I | 14 | $80,000 |
| + 5 km/h Max. speed II | 7 | $5,000 |
• This is the last Train of Era 2. You need to research it and all of its upgrades to be able to research The Coupling for 50 Research Points
The Bull is the Cargo Bonus Engine of Era 2. It can be bought in
the the Rail Nation Shop and can be won through the Lottery or by
entering competitions in Era 3.
Starting Stats:
• Cost: 1750 Gold • Tractive force: 4 • Reliability: 90%
• Acceleration: 05 /20 • Max. Speed: 120 km/h
You can install these upgrades:
| Upgrade | Upgrade Cost |
| +5% Reliability | 100 Gold |
| +1 Tractive Force | 100 Gold |
| +4 Acceleration | 100 Gold |
| + 20 km/h Max. speed | 100 Gold |