Welcome to new Cosmosim!

We've migrated the CosmoSim archive to new hardware and software stack! Hail to the CosmoSim team!

Please check the CosmoSim migrated section for more information.

The CosmoSim database provides results from cosmological simulations performed within different projects: MultiDark and Bolshoi and Galaxies.

MultiDark and Bolshoi Project

The Spanish MultiDark Consolider project supports efforts to identify and detect matter, including dark matter simulations of the universe.


Available now for the MDPL2 simulation - galaxy catalogs contain galaxy properties from different semi-analytical codes.

Please visit the linked sites for more information about the projects and about the appreciated form of acknowledgment, if the data is used in a scientific publication or proposal.

Check out the Data and the Services section for more information.

Database access

The database can be queried by entering SQL statements directly into the Query interface or via scripted access. Please checkout our Services section for the introduction and further services documentation.

More information on the simulations and their projects is available in the Data section. Details about the database tables are to be found in "Database table" section in the navigation.

Register via the Registration Form to get full access to all data.

In trouble? Questions? Comments? Send us a message via the Contact Form.

Images and movies

We have collected some visualisations related to the different simulations at Images & Movies.

Feel free to use them for talks, posters or just enjoy them! If you have created a nice movie yourself, share it with other people!

Just fill out the Contact Form and send us a short description where to find the movie/picture, what it shows and which data and code was used to produce it. We will then consider adding it to this web page.


A growing list of articles using this database or its predecessor, the MultiDark database, is available at Links and References section. There you can also find the links to the Software and technical documentation. For credits and acknowledgements, please consult the corresponding project pages at MultiDark and Bolshoi.