Q&A
How do you Get a Diff. 6 (Lv 51+) Codex? [2]
I've cleared a Diff 6 Chaos and the Lv70 ones in the seasonal Chaos, but I only get Diff 5 (< Lv 51) codex. How do I clear the initial Lv 51+ codex to unlock higher difficulties?
Reply 2
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When you completed a run you'll get to choose 1 out of 3 codex of the same planets for free. Those planets have +1 or +2 lvl from the codex you just completed, if you want lvl 51 codex then you need to win a lvl 49-50 codex.
Basically, just keep a win streak to increase your Zero System difficulty
You can only unlock them slowly by the time you continue doing codex. The level increases around 2 level if I'm not mistaken.
If your last codex run was level 49, youll probably be gteting level 51 next.