Merge Tower Defense 7.0 Guide: The core gameplay loop
About
OverviewMerge Tower Defense 7.0 is a Roblox tower defense game where you buy towers, collect energy, and merge matching towers into stronger ones to hold off endless waves of zombies. The further you go, the tougher the waves get — and the bigger the rewards.
What is on this page
Contents
The core gameplay loop
Step
Everything in the game flows from one cycle.
- Buy a tower spend your starting money on the first tower you can afford.
- Collect energy wait for your towers to produce energy automatically.
- Deposit energy turn that energy into money by depositing it.
- Merge towers once you have two towers of the same level, merge them into a stronger one.
- Defend the wave your towers attack incoming zombies on their own.
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How merging works
Tips
Merging is the main way you get stronger. Two Tier 1 towers merge into a Tier 2, two Tier 2 towers merge into a Tier 3, and so on all the way up through Tier 24. Higher-tier towers are more powerful against zombie waves.
- You can only merge two towers that are the same tier — mismatched towers cannot be combined.
- The tier names go from Gun at Tier 1 all the way up to Orbicus at Tier 24.
Free-to-play vs. diamond spending
Table
There are two tower tracks in the game.
| Regular towers | bought with money earned from depositing energy, no diamonds needed. |
| Premium towers | crafted with diamonds, start at a higher power level than regular towers. |
| Free-to-play path | merge regular towers repeatedly to reach high tiers. |
| Diamond path | craft a premium tower, then merge it the same way to reach powerful upgrades. |
| Diamonds | earned in small amounts without spending real money, but large quantities require purchase. |
Surviving longer and reaching higher days
CheckEach day that passes brings a stronger zombie wave.
- Keep merging regularly so your highest-tier tower keeps climbing.
- Deposit your energy every time you log in money sitting as undeposited energy cannot buy new towers.
Playing while away
TipsThe game has a strong idle element.
- Your towers generate energy whether you are in the game or not.
- When you log back in, deposit your accumulated energy right away to convert it into spendable money.
- Use that money to buy a new tower or complete a merge you have been building toward.
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Merge Tower Defense 7.0
Glossary
Glossary- Merge
- Combining two towers of the same tier into a single, more powerful tower one tier higher.
- Energy
- A resource your towers produce automatically; depositing it converts it into money.
- Money
- The main currency you spend to buy new towers, earned by depositing energy.
- Diamonds
- A premium in-game currency used to craft premium towers, which are stronger than regular ones.
- Premium Tower
- A tower crafted with diamonds that starts at a higher power level than a regular tower.
- Tier
- The level of a tower, running from Tier 1 (Gun) to Tier 24 (Orbicus), with each tier stronger than the last.
Common questions
FAQCan you finish the game without spending real money?
Yes. Buying and merging regular towers steadily will get you to a level where you can hold off zombie waves. Diamonds speed things up through premium towers, but they are not required to progress.
What should you do when you run out of money to buy towers?
Check whether you have undeposited energy — depositing it turns into money right away.
How do you get a Tier 24 Orbicus?
You work up through the full merge chain from Tier 1. Every tier requires two matching towers from the tier below it, so reaching Tier 24 means completing a long series of merges starting from the very beginning.
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