890B takes the player to the near future, where they have to discover a way to save humanity, which is in danger of extinction. Chaos reigns on Earth due to severe pollution, and the main character will need to find a way to avoid further dangers and save civilization. The user will play the role of Noah, a scientist who is tasked with finding a new planet suitable for life.

In the gameplay you will have to develop a research laboratory, carry out experiments and complete assigned tasks. The key mission is to discover a planet with similar conditions suitable for human life. This requires the use of multiple equipment. The gamer will solve puzzles, interact with objects around the location and use various objects and tools.

The perspective is presented from above, and the terrain is rendered using 3D graphics. The adventure game is filled with cutscenes and scenes that complement the narrative. The success of the operation depends on the actions and choices the user makes as he progresses. As missions progress, it is necessary to develop the laboratory, which will open access to the best equipment and make it possible to quickly find the necessary planet for the survival of humanity.