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Rarity Miner players farming ores
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All Lost Keys Locations in Rarity Miner – Roblox

Finding it isn't easy!

In Rarity Miner, Lost keys are required to unlock Lock Chests that ultimately reward you with various useful resources and items. However, finding a Lost Key is a daunting task due to its limited availability and fixed spawn location, which is why I've put together this guide to help you find it in Rarity Miner.

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How to find Lost Keys in Rarity Miner

Collecting Lost key in Rarity Miner
Screenshot by Pro Game Guides

Lost keys can typically be found in caves at depths between 440m and 1,000m, specifically in the biomes from Basalt to Tuff. You usually find three or four keys in a cave, and they’re relatively easy to spot in Rarity Miner. For instance, I found one of the Lost Keys 700 meters below the surface.

However, it's worth noting that their spawn locations aren't fixed, which means you will randomly encounter them during your exploration. Once you collect a Lost Key, it will be added to your inventory and the Cave Index will also be updated so you don't have to remember its exact depth.

What is the Lost Key used for in Rarity Miner?

As mentioned earlier, Lost Keys can unlock the Lost Chests in Rarity Miners which contain useful rewards. Unfortunately, finding these chests is a challenging task as well as they only spawn in Gleam Cave. So far, I didn’t get anything valuable from them but I was fortunate enough to get a Celestial from one of the chests. So, it's safe to assume that the rewards are random, and the rarity you receive is purely a matter of luck.

To be honest, I don’t think investing your precious time in finding Lost Keys and Chests is worth it. I’d recommend focusing on your regular farming techniques rather than relying on chests for rewards.

Looking for more general Roblox help guides? Check out some of our other articles on How to find your player ID on Roblox or Is SweetRBX real or a scam? here on Pro Game Guides!


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Author
Image of Tarun Sayal
Tarun Sayal
Tarun is an experienced Gaming and Esports writer with over six years of experience covering a wide range of video games. With a passion for the gaming industry, he specializes in writing features, guides, and news for popular live service games such as Fortnite, Warzone, VALORANT, Genshin Impact, and more. Over the years, he has sharpened his skills in writing comprehensive guides, insightful features, and breaking news stories that keep gamers informed and entertained.