In Astérix & Obélix XXL, players control either Asterix or Obelix, each possessing distinct abilities that aid in navigating through various levels. The objective is to reach the exit while overcoming obstacles and defeating enemies, including Roman soldiers and barbarians.

The storyline follows Asterix and Obelix as they embark on a quest to rescue their village's citizens from Roman captivity and safeguard the magic potion's formula. They traverse six Roman provinces, each filled with challenges and enemies.

Astérix & Obélix XXL stands out with its engaging level design, including unique "Ob-Sleigh" stages where players navigate downhill while collecting items. The game also features a currency system based on collected helmets, which can be used to purchase power-ups and unlock special moves.