The main objective in Big Bang Evolution is to evolve your universe by merging and creating new celestial bodies. Players collect energy to unlock various species and progress through different evolutionary stages.

To merge objects, simply tap on two similar celestial bodies. When they collide, they will merge into a new entity. Keep doing this to create higher-level species and expand your universe.

There are numerous species available in Big Bang Evolution, including stars, planets, and galaxies. Each species has unique attributes, and evolving them unlocks new levels and abilities, enriching your gameplay experience.

To collect energy efficiently, focus on merging higher-level species which generate more energy. Also, regularly check for bonus energy from events and consider upgrading your energy collectors within the game.

To unlock advanced features, you need to progress through various stages of evolution. Here are the steps: 1. Continuously merge objects to evolve. 2. Collect energy and accumulate points. 3. Reach specific milestones to unlock features. 4. Utilize energy wisely to upgrade species and enhance capabilities.