Mortal Kombat 9, released in 2011, has received an unofficial browser version. The game runs thanks to WebAssembly and WebGPU technologies, utilizing the computer's resources instead of traditional streaming from a remote server.
You can fight solo or online with a friend. For an online match, it is enough to create a room and invite a second player. Controls support keyboards and gamepads, which are recognized automatically.
Game data loads progressively: fighters and arenas are downloaded upon first use and saved on the computer. Graphics quality can be adjusted, and save files can be exported to a file.
It is worth keeping in mind that the project is unofficial, so in the future, the creators of Mortal Kombat may seek to have it taken down.