The Tower Idle Tower Defense: Lab & Research Guide - Slots, Priorities & Upgrade Order Explained

Apr 14, 2026

If you want to play The Tower Idel Tower Defense game as a long-term game, then labs and research are the most important things you will have to keep in mind. Upgrading workshops is necessary as it gives you power, but to increase the growth, you need to upgrade the labs. Upgrading labs and research improves your stats, raising limits, and unlocking stronger mechanics that make the game more interesting and keep you engaged with the game.

The Tower Idle Tower Defense

If you’re looking to get more information about The Tower Idle Tower Defense PC, feel free to check out the related guides below:

These guides can help you boost your progress and enhance your overall gameplay experience.

By the way, if you’re already eager to play The Tower Idle Tower Defense, we highly recommend playing The Tower Idle Tower Defense on PC and Mac with MuMuPlayer for a smoother gameplay experience. MuMuPlayer is the top Android emulator that offers optimal gaming performance with smooth keyboard and mouse controls, high FPS, and multi-instance support.

How to unlock and use Labs

In the game, Labs are unlocked very early in the game by completing Milestones at Tier 1 Wave 30. Most lab upgrades are tied to milestones, so you’ll usually unlock them before you can afford to buy them. The milestone type creates a progression path type game, which requires you to plan everything beforehand. Labs focus on two functions: improving scaling and increasing limits.

Lab Slots

Lab Slots are the most important part of the game. You need to have as many slots as possible to actually see the difference. At the very start, you get just one lab slot, but as you improve and progress further in the game, you can buy five more slots using gems. If you have multiple labs running at the same time, then your progress will grow significantly. Having one or two labs for research can slow you down, and then you cannot compete with players who have four or five running consecutively.

Lab Costs

The Lab slots may get a bit expensive to buy, but it is one of the most useful investments in the game.

  • 1st Lab is free, and you get it at the very start of the game.

  • 2nd Lab you have to buy for 100 Gems,

  • Similarly, for the 3rd Lab, you need to pay 400 Gems,

  • For the 4th Lab, the cost gets to 1,400 Gems

  • And for the 5th Lab, it costs 3,000 Gems

Total Cost: 4,900 Gems

Normally, players go for unlocking at least 3 lab slots very quickly, in the early games, then they save gems for the 4th slot and go for it mainly in the mid game, and lastly, having enough, they buy the final lab slots. This is the best type for getting and upgrading all your labs.

The Tower Idle Tower Defense

Key Lab Features

When it comes to speeding things up, you’ve got two main options: gem rushing and lab boosting. Gem rushing lets you instantly finish whatever time is left on a lab, but it’s usually worth using longer research where you get better value. Lab boosting, on the other hand, uses Elite Cells and adds a bit more strategy, since you can choose how much to speed things up and for how long.

  • Switching Labs: Refunds coins and saves progress

  • Auto Research: Automatically continues the level of the same lab

  • Lab Search: Quickly find upgrades using the search option

  • Lab History: Track completed labs with timestamps

Strategies

There are multiple categories in which the labs are divided, and each category has its own strategy for progress.

  • Use 1.5x boosts across labs for best efficiency

  • Avoid high multipliers unless you can sustain the cost

  • Boosting labs is better than over-boosting one

  • Enable auto-boost to keep labs running continuously

List of lab upgrades and their types

There are many types of research, and each one has different upgrades that can be very useful when you progress further.

The Tower Idle Tower Defense

  • Main Research: Game Speed, Starting Cash, Workshop Attack Discount, Workshop Defense Discount, Workshop Utility Discount, Labs Coin Discount, Labs Speed, buy multiplier, More Round Stats, Target Priority, Card Presets, Workshop Respect, Reroll Daily Mission, Workshop Enhancement, Enhancement Coin Discount

  • Attack Research: Damage, Attack Speed, Critical Factor, Range, Damage Per Meter, Super Crit Chance, Super Crit Mult, Max Rend Armor Multiplier, Light Speed Shots

  • Defense Research: Health, Health Regen, Defense Absolute, Defense Percent, Orb Speed, Land Mine Damage, Land Mine Decay, Shockwave Size, Orb Boss Hit, Wall Health, Wall Rebuild, Wall Regen, Wall Thorn, Wall Invincibility, Wall Fortification, Garlic Thorns

  • Utility Research: Cash Bonus, Cash Per Wave, Coins/Kill Bonus, Interest, Max Interest, Package After Boss, Recovery Package Amount, Recovery Package Max, Recovery Package Chance, Enemy Attack Level Skip

  • Ultimate Weapon Research: Missile Despawn Time, Missiles Explosion, Missile Radius, Chrono Field Duration, Chrono Field Damage Reduction, Chrono Field Reduction %, Swamp Radius, Swamp Stun, Swamp Stun Chance, Swamp Stun Time, Swamp Rend, Golden Tower Bonus, Golden Tower Duration, Chain Lightning Shock, Shock Chance, Shock Multiplier, Chain Thunder, Lightning Amplifier-Scatter, Death Wave Health, Death Wave Coin Bonus, Death Wave Damage Amplifier, Death Wave Armor Stripping, Inner Mine Blast Radius, Inner Mine Rotation Speed, Chrono Field Range.

  • Card Research: Second Wind Blast, Double Death Ray, Extra Orb Adjuster, Extra Extra Orbs, Energy Shield Extra Hit, Super Tower Bonus, Recharge Second Wind, Recharge Demon Mode, Recharge Nuke, Card Mastery Labs

  • Perk Research: Unlock Perks, Waves Required, Auto Pick Perks, Standard Perks Bonus, First Perk Choice, Improve Trade-Off Perks

  • Bot Research: Flame Bot Cooldown, Flame Bot-Burn Stack, Thunder Bot Cooldown, Thunder Bot-Linger Time, Golden Bot Cooldown, Golden Bot- Duration, Amplify Bot Cooldown, Amplify Bot-Duration

  • Enemies Research: Common Enemy Health, Common Enemy Attack, Fast Enemy Health, Fast Enemy Attack, Fast Enemy Speed, Tank Enemy Health, Tank Enemy Attack, Ranged Enemy Health, Ranged Enemy Attack, Boss Health, Boss Attack, Protector Health, Protector Radius, Protector Damage Reduction, Ranged Enemy Range, Vampire Enemy Health, Vampire Enemy Attack, Ray Enemy Health, Ray Enemy Attack, Scatter Enemy Health, Scatter Enemy Attack

  • Module Research: Common Drop Chance, Reroll Shards, Daily Mission Shards, Module Shard Cost, Module Coin Cost, Rare Drop Chance, Unmerge Module, Shatter Shards, Cannon Effect Bans, Armor Effect Bans, Generator Effect Bans, Core Effect Bans, Assist Module Labs

  • Battle Condition Research: Battle Condition Reduction, Group 1: Resistances, Group 2: Enemy/Spawn Buffs, Group 3: Enemy Ultimates, Group 4: Durations/Reductions.

How to Play The Tower - Idle Tower Defense on PC or Mac using MuMuPlayer?

  1. Download MuMuPlayer for PC or Mac and install it.
  2. Complete Google Sign-in and search The Tower Idle Tower Defense in the APP Center

  3. Click to download The Tower Idle Tower Defense PC from the search results.

  4. Click the The Tower - Idle Tower Defense icon on the home screen to start playing.

The Tower Idle Tower Defense

After you've done these steps which only take a few minutes to complete, you'll be enjoying The Tower Idle Tower Defense on PC, and with the best controls, graphics, performance, and other brilliant functions provided by MuMuPlayer. Now start your play experience in the exciting world of The Tower - Idle Tower Defense on PC with MuMuPlayer.

Conclusion

You can watch out for the lab upgrades in the guide that you need for your progression. This guide is specially made for the lab and research that will help you progress faster in The Tower – Idle Tower Defense. Each research done faster is an advantage for you as you get special upgraded abilities as your research is complete, and completing all the labs can get you significantly stronger in the game.

Never rely on just upgrading one lab to its max and leaving the rest untouched. It is better to have multiple labs with low upgrades than one lab over upgraded.

End of Article

Related Blogs