Last Fortress: Underground is a captivating mobile strategy game. Before you delve deeper, we have a game-changing revelation for you: a cheat to secure free diamonds and VIP points. Armed with these, your journey will be smoother than ever. Additionally, we’ll introduce the best hero lineup, offer pivotal tips, and show you how to optimize your construction speed and CP. Dive in, and let’s master the underground realms together!
How to Get Free Diamonds and VIP Points?
For those aiming for success in Last Fortress: Underground, obtaining free diamonds and VIP points is crucial, and our trick promises just that.

It’s worth noting that the game doesn’t support any input codes, but rest assured, our method is both reliable and effective.
Follow these steps to obtain free resources:
- Click on the indicated button to enter the GoCheat injectors universe.
- In the search bar, type “Last Fortress: Underground.”
- Input your game username.
- To verify your device, complete the promotional offers presented.
- After completing the verification, restart your game.
Best Hero Lineup in Last Fortress Underground
With a strategic lineup, I can now tackle most players, barring a few high-spenders.

So, what’s the secret sauce? Let’s delve into the art of lineup formation.
- The Back-Row Strategy:
- In traditional gameplay, most players position two tanks in the front row to absorb damage. Behind them, damage-dealing heroes and healers are placed in the back row. The main goal is to eliminate the enemy’s back-row heroes quickly to gain a significant advantage in battle. This strategy emphasizes the importance of smart positioning and targeting to secure victory.
- Four types of heroes prioritize back-row attacks:
- Lowest Agility Targeters: Such as Kelly and Rebecca.
- Lowest Health Targeters: Including Galande and Kaya.
- Group Damage Dealers: These include Benson, Marlen, Quinn, Ogawa, Laurel, and Elaine. However, be cautious; some group damage heroes, like Quinn, might not be as effective as they seem.
- Direct Back-Row Targeters: Laurel, Marlen, and Blanche fall into this category.
- The more back-row attackers you possess, the better. However, ensure you choose the most effective ones. For instance, if you only have Blanche, your lineup may still be vulnerable.
- The Art of the Substitute:
- Balancing your team isn’t just about offense; it’s also about controlling your opponent’s attacks. To achieve this, you can use a “substitute” strategy.
A substitute hero is someone who takes the hits and redirects enemy damage away from your valuable damage-dealers. Many players use heroes like Rebecca and Kelly, who target the lowest agility heroes. To counter this, you can lower the agility of one of your heroes, turning them into a substitute. This hero can be a tank, attacker, or even a healer. The key is to ensure that their agility remains the lowest among all your heroes. This way, your opponent’s attacks will be diverted away from your crucial team members.
- Balancing your team isn’t just about offense; it’s also about controlling your opponent’s attacks. To achieve this, you can use a “substitute” strategy.
In practical terms, this is how it pans out:
- For Low to Mid-spenders:
- Consider harnessing the formidable synergy of heroes like Rebecca and Kelly, complemented by a healing expert like Alisa. When assembling your front-line defenders, contemplate choices such as Bolton, Coleman, Roland, or Lunn to bolster your team’s resilience. If you’re fortunate enough to possess top-tier heroes like Galande, Laurel, or Benson, think about incorporating them into your lineup, possibly replacing a less robust tank to enhance your overall effectiveness on the battlefield.
- For Mid to High-spenders:
- After Season 1, a widely favored and potent team composition consists of placing Galande, Laurel, and Kelly in the back row, while employing Roland as the primary tank. The choice for a secondary tank can be flexible, with alternatives such as Lunn, Qian Qian, Harman, Jessie, Alisa, and others. This formidable combination is especially popular among high-spending players and grants a significant competitive advantage in arena battles.
- Lineup Adjustments:
- Remember, while there are standard powerful combinations, always be open to tweaking your lineup based on opponents. Some players may introduce characters like Blanche, Qian Qian, Suzuki, etc., to bring in a surprise element.
How to Increase Construction Speed?
- Upgrade Heroes:
- To accelerate construction speed, it’s essential to prioritize the enhancement of your construction heroes. Concentrate your efforts on the heroes directly involved in your construction processes, and dedicate resources to upgrade their skills. As these heroes’ skills improve, you’ll notice a marked reduction in construction times, making your overall construction operations more efficient and streamlined.
- Level Up Workstations:
- As you progress and level up your workstations, you’ll notice a gradual increase in your construction speed. While the process of leveling them up may require some time and effort, it’s a worthwhile investment that ultimately pays off in improved efficiency.
- Add Multiple Heroes with Pearson:
- Pearson possesses a unique skill called “multi-worker construction,” allowing you to assign multiple heroes to a single construction task simultaneously. The more heroes you assign to the task, the quicker the construction time becomes. For instance, having two heroes working together can cut the time in half, while three heroes will further reduce it, creating a cascading effect of faster construction times as you add more heroes to the task.
- Alliance Dual Day & Speed Ups:
- To make the most of your speed-ups, it’s wise to wait for your alliance’s dual day. This specific period offers the most significant benefits for using your speed-ups efficiently. Consider completing all your constructions and then activate the speed-ups approximately half an hour after the reset to maximize your alliance duel points, ensuring you get the most out of this valuable resource.
- Use the Moon Phase:
- Leveraging the moon phase can be a helpful tactic to expedite construction. To optimize its benefits, you might want to invest in research to enhance the advantages of the moon phase strategy further.
- Research Construction Benefits:
- Delve into your research endeavors and seek out items and advancements closely tied to construction. Prioritize research areas such as Fortress upgrades, which provide valuable benefits such as “fast forward” for additional Moon minutes and other speed-up resources. Make it a priority to identify and invest in research topics that will grant you construction speed advantages, ultimately enhancing your overall efficiency in building and development.
- Season Facilities:
- If you find yourself in Season One or beyond, direct your attention towards the engineering center. Elevating its level will notably boost construction speed, with a primary emphasis on accelerating the development of Season-specific facilities.
How to Increase CP (Combat Power)?
- Engage in Daily Objectives:
- Consistently completing daily objectives not only yields immediate rewards but also steadily increases your overall Combat Power (CP). Make the most of in-game currency, like the moon, through trade and daily rewards to fuel your growth. Donations, especially valuable resources such as food to your alliance, indirectly enhance your CP by fortifying alliance bonuses and benefits, playing a crucial role in your overall advancement.
- Maximize Explore Mode:
- Engaging regularly in explore mode is pivotal for strengthening your heroes, exerting a direct influence on your Combat Power (CP). As you advance deeper into this mode, you’ll earn an increasing number of Memento coins, which play a pivotal role in fueling the progression of your heroes, ultimately contributing significantly to your overall CP growth.
- Optimize the Subway Feature:
- The subway stands as a valuable resource for acquiring hero gear, with better gear directly translating to higher Combat Power (CP). Regular engagement with the subway system unlocks higher-quality gear, significantly boosting your hero’s combat prowess. Moreover, upgrading subway facilities not only enhances healing and damage but also expands your hero roster, ultimately elevating your overall team’s CP. This twofold strategy of gear improvement and facility upgrades plays a pivotal role in strengthening your heroes and enhancing your overall combat effectiveness.
- Participate in Recon Missions:
- Participating in these missions proves to be a valuable endeavor, offering rewards that serve to bolster both your resources and your Combat Power (CP). These rewards, which include experience points (XP), Memento coins, and Z coins, play an instrumental role in elevating your heroes’ capabilities and, consequently, your CP. Moreover, recon missions provide essential medals that are indispensable for hero development, serving as a key element in enhancing their combat prowess and overall effectiveness on the battlefield.
- Battle Mutated Zombies:
- Engaging in battles against mutated zombies proves highly lucrative, yielding a substantial influx of Memento coins. These coins serve as a linchpin for hero advancement, holding a pivotal role in the augmentation of your Combat Power (CP). Leveraging the opportunity presented by the five daily rallies can lead to a significant accumulation of Memento coins, subsequently propelling a swift and substantial increase in your CP, further fortifying your heroes and your overall combat capabilities.