If you’re an avid player of Goddess of Victory: Nikke, you already know how crucial gems are. These small yet powerful resources allow you to pull new characters, reset skills, and make steady progress without hitting a wall. After playing Nikke daily for over six months, I’ve tested various ways to earn gems efficiently, and one of the most consistent sources has been the Simulation Room. In this guide, I’ll share the top 5 ways to farm gems in the Simulation Room, based on personal experience and community-tested strategies.

1. Clear All Three Waves Daily

The Simulation Room offers up to three attempts per day, and each wave becomes more difficult as you progress. However, completing all three ensures you gain the maximum possible rewards—both in experience and Goddess of Victory Nikke gems. Even if you’re underpowered, optimizing your team with synergy (such as combining Support Nikkes like Noise with burst DPS units) can make a significant difference. Over time, this daily habit accumulates into thousands of gems.

Tip: I always schedule my Simulation Room attempts early in the day to avoid forgetting. Skipping a day is like throwing away free currency.

2. Target Bonus Nodes and Buffs

As you move through the Simulation Room, you’ll encounter optional nodes offering buffs or bonuses. These choices matter. For gem farming, choose buffs that enhance your team’s survivability and burst timing, allowing you to reach the final wave consistently. Completing full simulations gives better rewards and increases your daily and weekly resource efficiency.

From personal experience, stacking healing buffs helped me consistently push through tougher waves, even when I was slightly underpowered. Those extra completions added up in gem rewards.

3. Complete Weekly Missions

Each week, Goddess of Victory: Nikke offers Simulation Room missions tied to your performance and consistency. These missions often reward Goddess of Victory Nikke gems directly or provide resources that can be converted into gems via progress in events or milestones.

Some tasks include:

• Clear Simulation Room X number of times
• Achieve a high score
• Use a specific type of Nikke

By focusing on these missions, I’ve been able to gain an additional 300–500 gems weekly.

4. Use Nikke Gems Promo Code Usage for Boosts

Though not exclusive to the Simulation Room, you can maximize your efficiency by using available Nikke gems promo code usage when active. These codes sometimes include Simulation Room stamina refreshes or boosters, giving you more attempts or faster progress. Be sure to redeem them as soon as they’re released—many have expiration windows.

During a past event, I redeemed a promo code that gave me additional Simulation Tickets and stamina. With the extra runs, I completed more missions and pulled ahead in the weekly leaderboard, earning even more gems. Keep an eye on official channels and community forums like Reddit or U4GM for new promo code drops.

5. Invest in the Right Nikkes for Simulation Room Success

Having a powerful team is key to clearing higher-difficulty stages in the Simulation Room. From experience, Support Nikkes like Noise or Rapunzel, paired with damage-dealers like Modernia and Scarlet, provide a balanced comp that clears waves efficiently. Investing in the right characters and gear allows you to clear more consistently, which in turn leads to more gems.

If you’re free-to-play like me, plan your gem usage strategically. Save them for banners with top-tier Nikkes who perform well in both PvE and Simulation content. Each gem spent wisely pays back with long-term Simulation Room efficiency.

Farming gems in Goddess of Victory: Nikke doesn’t have to be a grind. The Simulation Room is one of the best ways to earn them consistently—if you approach it with the right strategy. With daily consistency, proper buffs, and good use of Nikke gems promo code usage, you’ll see your gem count steadily rise. From someone who’s been farming this mode daily, the effort is well worth the reward.