How to Farm Diamonds 99 Nights in The Forest New Guide Tips and Tricks!

Diamonds are one of the most valuable resources in 99 Nights in the Forest, especially if you want to unlock premium classes and gear without spending Robux. While badges can provide a small boost, the most reliable and repeatable way to earn Diamonds is through Cultist Strongholds. In this guide, we’ll walk you through the best methods, preparations, and strategies to maximize your Diamond income per run — without wasting time. Also check out our Tier List for 99 Nights in the Forest Class.


Best Method to Grind Diamonds: Cultist Stronghold

The Cultist Stronghold is your main source of Diamonds. You can repeat it multiple times in one run, and with the right preparation, it becomes an efficient farming spot.

You don’t need a specific class for this method, but if you want a cheap and effective choice, go for the Alien class. Its Ray Gun offers unlimited ammo, making Stronghold clearing much easier.


Solo vs Duo Runs

Before starting, decide if you want to play Solo or Duo:

Solo Runs

  • Fewer cultists spawn inside the Stronghold.
  • More challenging to maintain the campfire and gather loot.
  • If you die, the run ends immediately.

Duo Runs

  • Easier to maintain campfire and share loot duties.
  • Teammates can revive each other.
  • More cultists spawn, but they’re easier to handle with teamwork.

All Step by Step Guide to Farm Diamonds Fast

Step 1: Level Up Your Campfire to Level 4

You’ll need a Level 4 campfire to reveal enough of the map and locate the Stronghold.

Tips to Reach Level 4 Quickly:

  1. Prioritize fuel early to speed up upgrades.
  2. Use scrap metal on beds for quicker progression.
  3. Save kids when possible for extra rewards.
  4. Loot chests for weapons, gear, and potential bonus Diamonds.
  5. Trade with the Pelt Trader for quality equipment.

Essential gear before Stronghold:

  • Good sack for storage.
  • Good axe for resource gathering.
  • Guns and ammo.
  • Armor for defense.
  • Reliable melee weapon (spear recommended).
  • Bandages and medkits.

Step 2: Preparing for the Stronghold

Before entering, craft the following:

  • Map, Compass, Sundial – Makes navigation easier.
  • Crockpot – For making stew (best hunger recovery). If unavailable, cook meat instead.
  • Ammo Crate – Allows converting scrap into rifle ammo.

Step 3: First Stronghold Clear (5 Diamonds)

  1. Wait for the Stronghold to open (every 20 minutes). It’s marked with a diamond icon on your map.
  2. Use stealth — hide behind walls so cultists don’t notice you.
  3. Conserve ammo; use spear if safe.
  4. Clear floors in order, picking up any dropped ammo or coins.
  5. Open Ruby Chest for loot and Blue Chest for 5 Diamonds.
  6. Exit via rope to reset for the next Stronghold.

Step 4: Farming Between Strongholds

While waiting for the next Stronghold to open:

  • Upgrade campfire further for better loot access.
  • Save additional kids (bonus Diamonds at Day 50 = 2 Diamonds).
  • Craft more beds to push towards Day 99 (3 Diamonds bonus).
  • Use bear traps to defeat bear-guarded kids easily.

Step 5: Second Stronghold Clear

The second run will have more enemies with higher HP, but with enough rifle ammo from your Ammo Crate, it’s still manageable. Continue using stealth and avoid melee unless necessary.

Step 6: Third Stronghold Clear (Optional for 20+ Diamonds)

If you want over 20 Diamonds in one run:

  • Reach Day 99 for 3 bonus Diamonds.
  • Defeat the Juggernaut Cultist (same HP as basic cultists, just bigger).
  • Stock up on rifle ammo (200 is enough; 400 if you want extra).

Diamond Farming Results

With this method, in around 40–50 minutes, you can earn:

  • 15 Diamonds from 3 Stronghold clears (5 per Stronghold).
  • 5 Diamonds from Day rewards (Day 50 & Day 99 bonuses).
  • 2+ Diamonds from random chests.
  • Extra Diamonds from badges and luck-based events.

That’s 22+ Diamonds per run without even counting badge bonuses — enough to unlock some of the most expensive classes in the game in just a few sessions.


So basically, Always craft Ammo Crates for efficient ammo supply. Avoid wasting ammo on camp raids — save it for Strongholds. Use bear traps for dangerous animal encounters. If your only goal is Diamonds, stop after the third Stronghold; the fourth is too difficult for most players. Hope this help in farming diamonds in 99 Nights in the Forest!

Jay: A Content writer for Roonby.com Contact me on Jason@roonby.com, we can't reply to gmail for some reason.

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