Diamond planner for classes
How the daily income is counted
| Source | Normal | Hard mode |
|---|---|---|
| Survive to day 50 | 2 | 4 |
| Survive to day 99 | 3 | 8 |
| Cultist Stronghold diamond chest | 5 | 5 |
| Daily quests (3 of them, all done) | 15 | 15 |
The Days page of the wiki lists a different hard-mode day 99 reward than the Diamonds page; we use the Diamonds page (8), which also adds up to the wiki's own hard-mode total of 42 a day.
Chance a given class goes on sale
| Days waited | Chance of at least one sale |
|---|---|
| 1 | 10.26% |
| 3 | 27.72% |
| 7 | 53.12% |
| 14 | 78.02% |
| 30 | 96.11% |
Assumes 4 of 39 classes drawn evenly each day (the wiki does not say). The average discount when on sale is 13.75%, so waiting saves little for cheap classes and a lot for the 600-diamond ones.
Questions
How many diamonds can I earn per day for free?
Doing only the daily quests gives 15 (3 quests, 5 each). Adding one full 99-day run with 3 stronghold clears gives 35 a day, which is the routine the wiki itself suggests. Weekends with double gems double that.
Why are chests, update parties and badges not counted?
The wiki gives no fixed amount for them: update parties vary, chests pay 1 diamond at most every 30 minutes, and badges can only be earned once. Treat the result as a floor.
Is the sale chance real?
Only as a rough guide. The wiki says 4 random classes are discounted every 24 hours, not how they are drawn. The table assumes an even draw among 39 classes. The in-game class stock may narrow the pool.
Source: Classes (rev 32510, Oct 15, 2026), Diamonds (rev 32450, Oct 9, 2026) · 99 Nights in the Forest community wiki, CC BY-SA 3.0. Numbers restructured into tables and calculators; wiki images are not used.