Feature Overview

Diamonds are the most valuable premium currency in Lumber Inc. Accumulating a healthy stockpile of diamonds allows you to unlock elite BizChests, buy premium manager cards, instantly speed up construction, and quickly level up your workforce. Maximizing your diamond income is essential for any tycoon looking to rapidly scale their timber empire.

How to Access

Diamonds can be tracked directly via your top-bar resource counter. You can harvest this currency by visiting the In-Game Shop, checking your Mission Logs, opening the Lumber Pass menu, or entering the active Weekly Event portal.

Free diamonds

Sawmill missions

Lumber pass missions

 

Piggy Bank

Core Mechanics

You do not have to rely solely on real-money purchases to fund your premium balance. There are several highly effective ways to earn diamonds organically through regular gameplay:

  • Daily Shop Freebies: Don't forget to open your Shop daily. You can collect a batch of completely free diamonds once every 24 hours under the daily deals tab.

  • Sawmill & Daily Missions: Keep a close eye on your active quest checklists. Completing core Sawmill progression milestones and standard daily missions rewards you with steady diamond payouts.

  • The Lumber Pass: Actively complete seasonal goals to earn experience points for your Lumber Pass. Advancing through its tiers unlocks hefty diamond rewards along both the free and premium reward tracks.

  • Time-Limited Events: Participate in weekly events (like the Medieval, Wild West, or Green Island challenges). Hitting event milestones unlocks rare chests and direct diamond rewards.

  • The Piggy Bank: As you spend diamonds or evolve machinery on your main factory floor, your Piggy Bank accumulates bonus diamonds at a 10-to-1 ratio. Once it hits capacity, you can break it open manually to claim the entire cache.

  • The Bill Mark Manager Perk: Unlocking and leveling up the legendary Super Manager Mr. Bill Mark activates an automatic diamond generator. Once hired, he will physically hand you 3 diamonds every 4 hours.

  • Direct Purchases: If you need an immediate boost, you can purchase various diamond packs directly through the premium currency tab in the Shop.

Tips and Strategies

  • Set a Timer for Mr. Mark: Since Mr. Bill Mark’s passive generation caps at his 4-hour cooldown, log in regularly to tap his icon, clear his queue, and keep his timer rolling.

  • Maximize Your Piggy Bank: Save your machine evolutions for times when your Piggy Bank is empty. Evolving machines fills your bank incredibly fast, making it much easier to unlock.