The game knight squad 2 gam out in 2021 just wondering when it will be added????

It's a separate game. Personally I don't own it and I've only played the demo. It depends whether that game has an equivalent level-like system, as this game depends on the challenges for the leaderboard to exist.

If KS2 has something that is viable as a category, why not add it yourself? SRC are always open to new game submissions: https://www.speedrun.com/support/tickets/new