Resources

Metal
Metal is one of three resources in Space Pioneers 2. It is used for the construction of buildings, ships, defenses and also for research

To gain metal just build metal mines and while metal is the most mined to avoid future shortages of metal you should have at least 3 more metal mines than crystal

Crystal
Crystal is one of three resources in Space Pioneers 2. It is used for the construction of buildings, ships, defenses and also for research

To gain crystal just build crystal mines. You should have at least 3 less crystal mines than metal

Tritium
Tritium is one of three resources in Space Pioneers 2. It is used for the construction of buildings, ships, defenses and also for research and is also spaceship fuel

To gain tritium just build Tritium synthesizer