1 vs 3 Hardest AI teamed up, Age of Empires definitive edition

Choson mass Legion strategy, 1 vs 5 teamed up hardest AI:
   • [AoE] 1 vs. 5 Hardest Teamed Up AI, Age of...  

The Shang Boom strategy, 1 vs 4 hardest teamed up AI:
   • Shang boom, 1 vs 4 Hardest AI teamed up , ...  

1990s Command & Conquer, 1 vs 3 harderst teamed up AI:
   • C&C Tiberian Dawn, Skirmish, 1 vs 3 teamed...