When you download the Diablo 3 client there's a "playable" stage and an "optimal" completion. I'm assuming "optimal" includes stuff like higher-quality textures but I could not find any precise details about it. What are the precise differences between the "playable" and "optimal"?

And if my computer is on the low-end of the system requirements anyway, is it even worth it to wait for the "optimal"?

  • 1
    You may want to expand this to both SCII and WoW as well. Since this is being called a duplicate of such questions.
    – Nick122
    Jan 2, 2013 at 18:03

2 Answers 2


Much like World of Warcraft's launcher, "Playable" means the launcher has downloaded sufficient game code and initial media for you to launch the game and start playing it.

Unlike "available" where you run into "loading walls" where the game client struggles to keep up with downloading media necessary for you to play, "playable" means it has downloaded enough data for you to play without hitting any "loading walls".

Setup (Red): Core game content is being prepared. You cannot enter the game at this time.

Available (Yellow): Major game content is not completely applied. You can play, but your game experience will not be ideal.

Playable (Green): Final game content is almost complete. You may experience a few issues with playing at this stage.

The "Playable" includes high resolution textures and other low priority flair:

Q. How is data assigned to each stage?

A. Data is assigned to each stage based on the relative need for that data. Red is required to get into the game, Yellow is data needed for baseline gameplay, and Green is for variants of base game data (higher-resolution graphics, alternate sounds, other flavor data). [1]

Therefore, "optimal" means it has completed downloading all available content and will not impact your play experience with background downloads.

(Information is from World of Warcraft's launcher, which uses the same technology)

  • 2
    Here is a link that refers to the new launcher of World of Warcraft Aug 04, 2010. In this launcher they start using this feature.
    – Michel
    Apr 20, 2012 at 17:36
  • The Diablo 3 launcher is not identical to the WoW launcher. D3 has Setup, Playable and Optimal for stages, instead of Setup, Available, and Playable. In D3, Optimal lights up when there's still 1.77 GB remaining, and not in fact when it's finished. May 16, 2012 at 1:59
  • @JoelMueller In SC2, optimal lights up more than a gig before it is complete.
    – Ron
    Dec 22, 2013 at 5:35

For a much more in-depth answer, see Resorath's answer.

Simply put, you will be able to play it during playable, but you will experience issues with graphical and possibly network quality if you choose to play [it will continue to patch as you play].

When it is in the optimal state, that means that you can play without your gameplay experience being affected too much, if at all, by the update process.

The same applies to all of the games associated with the Battle.net launcher. Starcraft 2, World of Warcraft, Diablo 3 and Hearthstone all follow this update approach.

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