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

Pretty much. Once the beginning of the game is downloaded, it can start running while the rest is downloaded in the background. Things like the splash screens and character creation can eat up your time while the download finishes.

Even open world games are not so open that you can get from the starting point to anywhere in the game in a minute or two.

Depending on their error handling, if you tried to access something that hadn’t been downloaded yet, you might get an error message or the game may behave in unexpected ways, including crashing.

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