In NieR: Automata, certain crafting materials are notably harder to find than others. The Pristine Screw, for example, is one such elusive item. Although there's no visual indicator like color or a special shine, these rare materials are challenging to obtain, making them all the more valuable.
You might be tempted to buy Pristine Screws from Emil, but his inventory is constantly changing, making it unreliable. Hunting down machines to farm these screws can be more cost-effective and direct. Here are some effective methods for farming Pristine Screws.
Pristine Screws are primarily dropped by Goliath-Bipeds, the largest non-boss machines you'll encounter. Among the various types of screws they drop, Pristine Screws are the rarest. The higher the level of the Goliath-Biped, the greater your chances of obtaining a Pristine Screw, making it nearly impossible to find in the early stages of the game.
Several locations consistently spawn Goliath-Bipeds, with the first being the pit where you initially battle Adam. This area is also excellent for farming Machine Arms. However, the Goliath-Bipeds here are just above level 30, resulting in a lower drop rate for Pristine Screws. The advantage of this location is the continuous spawning of enemies, allowing for rapid farming despite the lower drop rate.
Alternatively, during your third playthrough, you can fast-travel to the Forest Castle: Front access point to encounter two level 49 Goliath-Bipeds guarding the entrance. These higher-level machines offer a better chance of dropping Pristine Screws, but they don't respawn. You'll need to fast-travel away and back to repeatedly engage these Goliath-Bipeds.
Both methods can benefit from using a drop-rate up plug-in chip to enhance your farming efficiency.
Choosing the best method to farm Pristine Screws depends on two key factors:
Farming Pristine Screws is time-consuming regardless of the method. While the Forest Castle offers a higher drop rate, it involves more loading screens and less actual gameplay. If this doesn't bother you, the Forest method is preferable. However, if you prefer continuous gameplay and want to farm other materials and gain XP simultaneously, the pit is the better choice.