What is the biggest free game?

It's impossible to say definitively what the "biggest" free game is, as "biggest" can be interpreted in many ways:

* Size: In terms of download size, many free games are huge, especially modern AAA titles with large open worlds.

* Player base: Some free games have massive player bases, like Fortnite and League of Legends.

* Development cost: Some free games are heavily funded and developed by large companies, giving them a sense of scale.

* Scope: Some free games have incredibly complex gameplay systems or vast worlds to explore, which could be considered "big."

Therefore, there's no single "biggest" free game.

However, here are some examples of free games that could be considered large in various aspects:

* Fortnite: Extremely popular with a huge player base, massive updates, and a constantly evolving world.

* League of Legends: A massive online battle arena with a vast champion roster, competitive scene, and a dedicated community.

* Genshin Impact: An open-world action RPG with beautiful graphics, a compelling story, and a constantly expanding world.

* Destiny 2: A free-to-play action MMO with a robust story, challenging raids, and a constantly updated game world.

* Apex Legends: A battle royale game with a unique character roster, a fast-paced action, and a strong competitive scene.

Ultimately, the "biggest" free game depends on your own personal definition of "big."