Material II

Material II is a progression achievement awarded for obtaining Thorium in the game; it records the player's first successful acquisition or access to the Thorium resource and serves as a milestone in resource progression. The achievement is part of the progression category and ties into resource-gathering mechanics, marking advancement toward technologies and buildings that require Thorium. Earning Material II typically indicates the player has located, mined, or otherwise secured Thorium resources necessary for higher-tier construction and research.