Phages are viruses that infect bacteria. Bacteria defend themselves against viruses with CRISPR-Cas gene scissors. In the Phage Invader game you can take over the role of CRISPR-Cas in a bacterium and defend it against the invading viruses.
Gen-editing with CRISPR/CAS9
Since it became known that the system known as CRISPR/Cas9 could be used to manipulate the genome of a wide variety of organisms, non-scientists have also been interested in the new genetic engineering method.