import json, os
folder = r'c:\src\____GitProjects\target_simulator\archive_simulations'
for fn in os.listdir(folder):
    if not fn.endswith('.json'):
        continue
    p = os.path.join(folder, fn)
    try:
        with open(p,'r',encoding='utf-8') as f:
            j = json.load(f)
    except Exception:
        continue
    n = len(j.get('simulation_results', {}))
    if n >= 3:
        print(fn, n)