It depends on age, which you didn't list, but I'm guessing 6 week-ish or so?
Dark one looks female. Watch the lighter one. Probably female, but the comb is larger and has some pink. If it is 5 to 6 weeks old, that could be a rooster.
LofMc
From the photos posted, I'm not seeing any game influence either. Typically game have wing tips that are longer than their body. These chicks have a heavier body with wing tips that align with body, typical of layer types.
But there could be a multitude of breeds involved...you have medium-ish...
Simply mixed breeds...no way of knowing what without some idea of the list of birds on the property...and even then...they simply are a mix-match.
Not Pekin (bantam Cochin) as not fully foot feathered with big loopy floppy feathers. I'm seeing no Cochin influence as that foot feathering is...