Another Eden

Another Eden Green/Red Keys and Another Dungeon Optimization Guide​

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Green and Red Keys are the main time‑gated resource for Another Dungeons in Another Eden, so optimizing them is crucial for long‑term power, tomes, and Light/Shadow. This guide explains what each key does, which dungeons to run, and how to maximize your daily and long‑term returns.​​

Green vs Red Keys explained

Green and Red Keys both open Another Dungeons from the Spacetime Rift, but they behave slightly differently. Understanding their roles helps you decide what to farm each day.​​

Key typeUsed forTypical daily capNotes
Green KeysHard‑mode Another Dungeons and exploration dungeons like Ruins of Rucyana and Garulea (Present/Antiquity/Future). ​Usually up to 9 per day; excess from rewards can overflow slightly. ​Best long‑term for Garulea and Ruins of Rucyana, Light/Shadow farming, and grasta fragments. ​
Red KeysVery Hard Another Dungeons (tomes, scripts, and top‑end loot). ​Usually up to 5 per day; cannot be banked above the cap except via temporary rewards. ​Best used in VH dungeons that drop treatises/opus/codices and key upgrade materials. ​​

Keys do not carry over beyond their cap (aside from some overflow from chests or campaigns), so using them daily is important.​

Best use of Red Keys (Very Hard)

Red Keys should almost always go into Very Hard Another Dungeons with high‑value drop tables. Treatises, opus, and codex drops all come from VH reward slots and are essential for style upgrades and sidegrades.​​

  • Prioritise VH dungeons that drop tomes/treatises for units you actually plan to use or upgrade.​
  • Once you unlock regional/otherlands‑style VH dungeons, consider running those for endgame gear and upgrade materials.​​
  • White Key chance (Phantom Crystal Dimension) comes from running Another Dungeons at any difficulty, but each VH run still gives a roll at the White Key lottery.​

Community advice generally discourages buying extra Red Keys with Stones, as the cost per run is high compared with saving for banners.​

Best use of Green Keys (Hard / exploration)

Green Keys start out feeling low‑impact but become extremely valuable once Ruins of Rucyana and Garulea exploration dungeons unlock. These 2‑key dungeons offer strong general rewards, Tsubura’s Gems, Light/Shadow farming, and grasta fragments.​

Recommended Green Key priorities:

  • Early game: any Hard Another Dungeon you can clear quickly for EXP and basic drops.​
  • Midgame: Ruins of Rucyana for weekly Tsubura’s Gems and generalised loot; clear it enough times to unlock its upgrades, then treat it as optional.​
  • Goddess of Time era and beyond: Present/Antiquity/Future Garulea for grasta fragments, gear, and improved rewards; most players funnel Green Keys here long term.​

If you are specifically farming Light/Shadow on story characters, use Green Keys on their dedicated Another Dungeons while keeping them in the party.​​

Light/Shadow thresholds and reward slots

Another Dungeons reward slots scale with your team’s total Light or Shadow (whichever is higher). Hitting certain thresholds unlocks more reward chests, which directly increases your chance of tomes, treatises, and rare drops.​​

Team Light/Shadow totalEffect on Another Dungeons
Around 120 (Hard)Unlocks extra reward slots for many Hard dungeons. ​​
Around 180Needed for full rewards in “Otherlands” type dungeons. ​
360+Allows maximum 5 reward slots and double‑key runs in certain high‑end dungeons. ​​

Raising Light/Shadow via story‑character farming and items over time significantly boosts the value of every Green and Red Key you spend.​

Daily optimisation tips

A clean key routine keeps your account progressing without much micromanagement.​

  • Always spend all Red Keys on your highest‑value VH dungeons first (treatises/opus/codex targets or best gear).​​
  • Spend Green Keys on Ruins of Rucyana or Garulea exploration dungeons once unlocked; otherwise, use them on fast Hard clears or Light/Shadow farms.​
  • Keep a Light/Shadow farming team for story characters and rotate them into the party when running relevant dungeons to slowly build toward 120/360 thresholds.​​
  • Treat White Key runs (Phantom Crystal Dimension) as a bonus; do not blow Stones on extra keys just to chase them.​​

For a visual walkthrough of daily key usage and Another Dungeon priorities, see routine and key‑focused videos such as:

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Jake Skudder

Jake is an SEO-minded Football, Combat Sports, Gaming and Pro Wrestling writer and successful Editor in Chief. Most importantly, he is a Gacha players who specialises in Genshin Impact. On top of that, Jake has more than ten years of experience covering mixed martial arts, pro wrestling, football and gaming across a number of publications, starting at SEScoops in 2012 under the name Jake Jeremy. His work has also been featured on Sportskeeda, Pro Sports Extra, Wrestling Headlines, NoobFeed, Wrestlingnewsco and Keen Gamer, again under the name Jake Jeremy. Previously, he worked as the Editor in Chief of 24Wrestling, building the site profile with a view to selling the domain, which was accomplished in 2019. Jake was previously the Editor in Chief for Fight Fans, a combat sports and pro wrestling site that was launched in January 2021 and broke into millions of pageviews within the first two years. He previously worked for Snack Media and their GiveMeSport site, creating Evergreen and Trending content that would deliver pageviews via Google as the UFC and MMA SEO Lead. Jake managed to take an area of GiveMeSport that had zero traction on Organic and push it to audiences across the globe. Jake also has a record of long-term video and written interview content with the likes of the Professional Fighters League, ONE and Cage Warriors, working directly with the brands to promote bouts, fighters and special events. Jake also previously worked for the biggest independent wrestling company in the UK, PROGRESS Wrestling, as PR Head and Head of Media across the social channels of the company.

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