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SunRuby Farming guide for Seven Knights Re:birth (7K Rebirth) covering the best farming areas, Key Box/Ruby balance, and how many Key Boxes to buy for max efficiency.
Table of Contents
| Related Ruby Farming Articles | |
|---|---|
| How to Ruby Farm | Ruby Farming Efficiency Guide |
How Many Key Boxes Should You Buy?
Best to Buy Up to the 80-Ruby Key Box
In the Ruby Exchange Shop, it's best to buy Key Boxes up to the 80-Ruby one. Since the shop lineup resets daily, buy a little each day to prepare for that day's Ruby Farming.
Check How Many Runs It Takes to Earn 12,500 EXP
The EXP needed to raise a hero from Lv.1 to Lv.30 is 12,500. Since you earn 20 Rubies upon reaching Lv.30, farming with a 4-slot Leveling team means earning 80 Rubies per 12,500 EXP gained.
In other words, if you adjust things so the Rubies gained from leveling exceed the cost of buying one Key Box (60 Keys), you can keep increasing your Ruby count.
Subscribing to a Membership Service Boosts Efficiency
Ruby Farming efficiency increases significantly if you subscribe to a membership service (Elena's Blessing / Daily Ruby Support / Daily Enhancement Support). If you want to farm Rubies more efficiently, consider subscribing.
Best Premium Shop PurchasesRuby Farming Efficiency With and Without Daily Ruby Support
| Ruby Support | With | Without |
|---|---|---|
| EXP Earned | 1,320 | 1,200 |
| Runs Needed for Max Lv | 10 Runs (60 Keys) | 11 Runs (66 Keys) |
With Daily Ruby Support, the number of runs needed to reach max level drops by 1 compared to without it. The more you farm, the bigger the gap in the Ruby balance described below becomes, so subscribing is well worth it.
*Key counts above are based on Areas 1-3 (6 Keys per entry). Area 4 and beyond cost 12 Keys per entry.
Key Box/Ruby Balance Quick Reference
| ① | ▼When Buying the 50-Ruby Key Box |
|---|---|
| ② | ▼When Buying the 50+80-Ruby Key Boxes |
| ③ | ▼When Buying the 50+80+100-Ruby Key Boxes |
When Buying the 50-Ruby Key Box
| Total Keys Earned | 1,200 |
|---|---|
| Cost Required | 1,000 Rubies |
| Ruby Support | With | Without |
|---|---|---|
| Rubies Earned | 1,600 | 1,440 |
| Ruby Balance | +600 | +440 |
Buy out all the 50-Ruby Key Boxes every day. Since Ruby Farming leaves you with a net gain in Rubies, you'll almost never come out at a loss.
Combined with Natural Recovery, You Can Farm Even More
Combining natural recovery with Keys obtained from rewards and exchanges lets you get even more Keys and farm Rubies further. Since Rubies will come out ahead unless your win rate is really bad, don't forget to buy the 50-Ruby Key Box.
 Tips! | Keys recover 1 every 3 minutes. While subscribed to Daily Enhancement Support, they recover 1 every 2 minutes instead, so you can farm Rubies even more efficiently. |
|---|
When Buying the 50+80-Ruby Key Boxes
| Total Keys Earned | 4,200 (1,200+3,000) |
|---|---|
| Cost Required | 5,000 Rubies (1,000+4,000) |
| Ruby Support | With | Without |
|---|---|---|
| Rubies Earned | 5,600 | 5,040 |
| Ruby Balance | +600 | +40 |
It's best to buy out all Key Boxes up to the 80-Ruby one. Once you start Ruby Farming in earnest, you'll earn plenty of other rewards besides Rubies, such as Gold and heroes, so make it a daily routine to buy up to this point and farm.
When Buying the 50+80+100-Ruby Key Boxes
| Total Keys Earned | 7,200 (1,200+3,000+3,000) |
|---|---|
| Cost Required | 10,000 Rubies (1,000+4,000+5,000) |
| Ruby Support | With | Without |
|---|---|---|
| Rubies Earned | 9,600 | 8,720 |
| Ruby Balance | -400 | -1,280 |
Buying the 100-Ruby Key Box puts you into a net loss. That said, with Ruby Support the loss is only around -400, and it leads to obtaining Accessories and various materials, so buying it is definitely a solid option.
Boxes of 120 Rubies or More Aren't Worth Buying
Once you buy out all the 100-Ruby Key Boxes, 120-Ruby Key Boxes appear in the shop, followed by 150-Ruby ones. However, beyond this point even with Daily Ruby Support, the net loss becomes large, so we advise against buying them.
Best Ruby Farming Areas
Ruby Farming Now Has Its Own Dedicated Areas
Ruby Farming used to mean repeating regular Normal or Nightmare stages. Now there are 10 Ruby Farming-only areas (Areas 1-10) built for farming. Each area is unlocked by clearing a specific Normal or Nightmare stage, and the further you go, the better the rewards.
Farming the Furthest Unlocked Area Is Best
Rewards by Ruby Farming Area
| Area | Unlock Condition | Keys per Entry | Gold | Features |
|---|---|---|---|---|
| 1 | Clear Normal 2-10 | 6 | 6,000 | - 1-3 star heroes can drop - 2-3 star Equipment can drop - Gold Boxes can drop |
| 2 | Clear Normal 7-10 | 6 | 6,500 | - Legendary heroes can drop |
| 3 | Clear Normal 12-10 | 6 | 7,000 | - Dedicated Equipment can drop |
| 4 | Clear Nightmare 1-10 | 12 | 15,000 | - Nightmare-difficulty stage (2 teams required) - 4-star Accessories can drop |
| 5 | Clear Nightmare 6-10 | 12 | 16,000 | - 4-5 star Accessories can drop |
| 6 | Clear Nightmare 11-10 | 12 | 18,000 | - 4-6 star Accessories can drop |
| 7 | Clear Nightmare 16-10 | 12 | 20,000 | - Pet Eggs can drop |
| 8 | Clear Nightmare 21-10 | 12 | 22,000 | - 2,000 more Gold than Area 7 |
| 9 | Clear Nightmare 26-10 | 12 | 24,000 | - 2,000 more Gold than Area 8 |
| 10 | Clear Nightmare 31-10 | 12 | 26,000 | - The most generous rewards |
All Ruby Farming areas give a fixed 1,200 EXP, but the other rewards get better the further you go. Accessories start dropping in Area 4, and the higher the area, the higher the grade of the Accessories. Basically, farm the furthest area you currently have unlocked.
Ruby Farming (Nightmare) Tier
*There is no left-to-right difference within the same Tier.
Heroes are rated on how fast they can farm, based on attack range, damage and durability, and farming speed. Area 4 and beyond are Nightmare-difficulty areas where Accessories can drop, so it makes a big difference whether you can clear them. If you own 2 heroes rated S or higher on this Tier List, clearing these areas is relatively achievable.
Ruby Farming GuideRelated Seven Knights Re: BIRTH Articles
▶Back to Top PageTier Articles
Reroll Tier List
Best Hero Tier List
Best Pet Tier List
Best Heroes and TeamsPopular Guides
| Latest | |
|---|---|
 Latest News and Updates |  New Hero: Eve |
 Judas (Buffed) |  Should You Pull for Eve? |
| Recommended | |
 Coupon Code List |  Ruby Farming Guide |
 How to Farm Gold |  Ruby Farming Efficiency Guide |
Early Game Guide
How to Reroll Guide
Daily Things to Do
Power Up Guide
Equipment Power Up
Dedicated Equipment
Skill Enhancement Priority
Awakening Passive Guide
Hero Fusion
