99 Nights Diamonds & Codes — How to Earn and Spend Them

Where to redeem codes

Open the Currency Shop in the lobby and select Codes. Enter a code there; each regular code can only be claimed once per account. The unusual “yay fishing” reward described by the game wiki works differently: it is entered in chat during a fishing minigame in an active run, with a fishing rod equipped. It is not a code to paste into the lobby box, and chat restrictions may prevent its use.

Use our codes page for the most recently checked codes and their verification dates. A code that worked for someone last month may have expired; a video title is not proof that it still works. Never enter a Roblox password, download a file or complete a survey to claim a game code.

What diamonds buy

The Diamonds reference lists three uses: purchasing classes, buying or rolling talents on a class, and rerolling class stock. The Classes reference documents starting equipment and unlockable perks. That makes a class a gameplay choice, not a cosmetic purchase.

Check the class's starting tools and all of its perk levels before spending. The class shop rotates stock, so a reroll also costs resources that could have gone toward your next class or talent. If you are still learning fire, food and cave rescues, practice those basics first; a stronger class does not replace a safe route back to camp.

Ways to earn diamonds without Robux

The wiki's currency page also lists buying diamonds with Robux. You can earn the currency in play, so buying it is optional. Do not confuse lobby diamonds with the Gem of the Forest, an in-run crafting item described in the chest reference.

• Survival milestones: the wiki records diamond rewards for reaching days 50 and 99. Longer runs are useful when your group can survive them consistently.
• Cultist Strongholds and chests: the Stronghold's Diamond Chest is a documented reward; other chests can also contain a diamond. These are run rewards, not guaranteed drops from every container.
• Daily quests and badges: daily tasks offer repeatable opportunities, while badge rewards are one-time claims.
• Codes and update parties: codes are one-time rewards. Update parties happen only around announced updates and have different rules from normal runs; check the game's announcement before planning around one.

A sensible first purchase

Choose the class for the problem that ends your runs most often: carrying capacity, food, visibility, fighting or helping teammates. Compare its current shop price and perks in game, then save for that class before paying to reroll stock. After you own a class you use regularly, consider its talents. The best spend depends on your route and team; there is no universal class that fixes every run.

Sources: the 99 Nights in the Forest Wiki's Codes, Diamonds, Classes and Chests pages. Mechanics and prices can change with game updates; this guide was reviewed on 10 October 2026.