This is a simple checklist to make it easier to keep track of your progress and which materials you actually still need to upgrade every weapon in NieR Replicant ver.1.22474487139...
This checklist includes the free YoRHa DLC weapons and Kainé's sword though none of these are needed to unlock more endings.
A handy guide to where all weapon upgrade materials (along with other materials needed for other tasks) can be found has been compiled on Reddit by user /u/lthatguytherel and can be found here.
The original list seems to have either included some errors, or the game has been updated since then. I've tried to correct these errors in this checklist, but if you find any more, please let me know.
Your progress is saved locally on the device you're using. When you return you'll be able to pick up where you left off (unless you're browsing incognito, then everything will be wiped at the end of your session). More info about 'localStorage' and incognito here.
One-handed swords
| Name | Type | Level 2 | Level 3 | Level 4 | Remaining | |||
|---|---|---|---|---|---|---|---|---|
Two-handed swords
| Name | Type | Level 2 | Level 3 | Level 4 | Remaining | |||
|---|---|---|---|---|---|---|---|---|
Spears
| Name | Type | Level 2 | Level 3 | Level 4 | Remaining | |||
|---|---|---|---|---|---|---|---|---|
Grand total remaining