CrossFire is a 2007 old CS1.6 clone made by a Korean company Smilegate, the game remains one of the most played games in China to this day with a Franchised League model like VCT but with no Tier 2.
It was a game that CS has never beat them in Internet Cafe numbers and it only took VALORANT couple years to finally beat them.
Apparently Smilegate has open up career jobs, for developing a sequel to the original CrossFire - https://careers.smilegate.com/apply/announce/view?seq=5568
There are two Korean Companies that is moving actively building a sequel of their top FPS after VALORANT beat them in numbers:
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SmileGate with CrossFire 2
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and recently NEXON announces a remake version of the original Sudden Attack, a game that's also beaten by VALORANT in Korean cafe numbers . - https://store.steampowered.com/app/3576070/Sudden_Attack_Zero_Point/