The game's working title is "AccBox" which stands for Accretion Box. Accrete your own Universe inside your electronic box by adding the elements one by one.

AccBox has an educational purpose. It is designed to inspire students ti learn astrophysics and space mechanics.

The game offers user to play one of two basic modes: "Create" and "Explore".

In "Create" mode player will be offered to create a new planetary system, starting with the customization of the host star. The global parameter is a spectral class. Then such properties as mass, radius, temperature and rotational velocity are being set. Some restrictions may be applied by the game, as for example minimal star temperature depending on the star radius (nedeed for the thermonuclear combustion in the cire) or maximum rotational velocity (above which the gravitaon simply could not win the centrifugal forces causing the breaking up of a star).

In further developing such advanced parameters as chemical composition will be added in customization process.

As the next step of creating process a player will be allowed to add a new planet with such parameters as mass, radius, axis inclination and rotational velocity to be defined with the possible adding of advanced parameters in the future.

The third step will let the player to set the orbit parameters, such as radius, eccentricity and inclination. The game will calculate in the real time the surface temperature range and the possibility of the life occurence and some other characteristics. Some more new restrictions will be apply at this step, such as orbital radius to prevent the planets of colliding to each others.

The other feature of the game will be the possibillity to save the created by player planetary systems on the server to share them with other players. In the "Explore" mode the player will be provided with the possibility to explore other players' worlds or some of built-in system as the Solar system or for example TRAPPIST-1 system created using the data taken from NASA Exoplanet Exploration website.

"Physical explanation and limitations" window can be opened at any moment to get all the usefull information.

Adding the "Challenge" mode in the future versions of the game is considered, allowing a player to solve the problems such as an example "Create a planetery system with the 6 habitable planets", transforming the game in the more exciting to play space-scale tycoon.

The additional "Fiction" mode is the same as "Create" mode but the physical restrictions off.

Unity game-engine with the Space Graphics Toolkit is considered as development software. The game is being designed for PC with possible future adaptation to mobile devices.

During the development process such issues as a lack and low qualification of human resources have been encountered.