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Methods to Upgrade Regional Development Level (RDL) in Arknights: Endfield Regions

RavenRavenFebruary 10, 2026
RavenRavenFebruary 10, 2026

In Arknights: Endfield, the Regional Development Level (RDL) is a core indicator of the base-building gameplay. As the RDL increases, players can unlock more features, rewards, and construction resources. Therefore, upgrading the RDL early on is very important. So, how can you increase the RDL? Here is a detailed guide for you.

Region Development Level Up

RDL is an indicator of a player's progress in a specific area. It increases by upgrading infrastructure, developing outposts, completing exploration missions, and accumulating Regional Development Metrics (RDM).

Specific Improvement Methods

1. Transmit the power to the mineral bed, place the mining rig, and start mining.

2. All regional buildings unlocked through activation and upgrades.

3. Outpost connection and prosperity upgrades.

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       Core: Level Unlock

With each level up:

Mineral purity increase for greater yield;

Regional stock bill limit increase;

Protocol capacity increase, can place more capacities

Raven
Raven
Experienced Game Writer
Raven is a game industry professional with a passion that spans across genres, yet beats strongest for anime-Gacha game. As a seasoned player and strategist, they channel deep systemic knowledge and hands-on experience into clear, actionable guides. All their insights are crafted exclusively for the gaming community on Rushbuy.
Raven
Raven
Experienced Game Writer
Raven is a game industry professional with a passion that spans across genres, yet beats strongest for anime-Gacha game. As a seasoned player and strategist, they channel deep systemic knowledge and hands-on experience into clear, actionable guides. All their insights are crafted exclusively for the gaming community on Rushbuy.