ELi5: how does a 75GB game become ‘playable’ after only having downloaded 20GB?

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How do developers do this? Does it just mean the first few levels have been downloaded? What about open world style games? How do they know which bits you will/won’t interact with and what happens if you get to a part that isn’t yet downloaded?

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7 Answers

Anonymous 0 Comments

Most of the game you’re downloading are textures (graphics) that probably only exist in a very small part of the game.

When you’re downloading the textures only used in later levels, you can still play the earlier levels.

This is no different from how your compute/console normally plays games. Most of the game isn’t loaded at any given time. The computer will load different parts of the game based on what you are doing.

This is why older games often have long pauses for *load screens* between sections or levels. They need to load up the material for the next section.

Anything that isn’t related to what you are doing *right now* technically doesn’t need to be on your computer to play the game.

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