Merge Defense Guide: Starting out with the tutorial
About
OverviewMerge Defense is a team-based tower defense game where you place units on your plot, merge matching ones to level them up, and fight off endless waves of enemies. This guide walks you through the core loop — rolling for units, merging them, managing your plot space, and pushing further into the waves.
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[🔥UPD 2] Merge Defense
Starting out with the tutorial
Step
When you first load in, the tutorial walks you through rolling, placing units on your plot, and merging. Getting through it completely sets you up with your first units and a working defense before the waves get serious.
- Follow the tutorial it covers rolling, placement, and merging.
- Place units on your plot after the tutorial ends.
- Defeat waves to earn cash to spend on more rolls.
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How merging works
Summary
Merging is the main way to build power. Place two units of the same type and the same level next to each other on your plot and they automatically combine into one unit a level higher. Repeat the process with that stronger unit to keep climbing.
- Same type, same level both conditions must be met for a merge to trigger.
- Adjacent placement the two units must be next to each other on the plot.
- No failure a valid pair always merges, so there is nothing to lose.
- Repeatable you can keep merging the results to reach very high levels.
Rolling and crates
TipsRolls show you a random unit you can collect. Crates drop as you progress and contain units, mutations, and upgrades when opened. Both sources feed your merge chain, so use them regularly.
- Spend cash on rolls to add new units to your collection.
- Collect duplicates through rolls so you have pairs ready to merge.
- Open crates whenever you earn them — the rewards include rare units and powerful upgrades.
Plot space management
Warn
The plot is the fixed area where all your units live. Running out of space means you cannot place new units or set up merges. Think ahead about where merges will happen.
Earning and spending cash
Check
Every wave you defeat drops cash. Keeping that cycle going is what lets you build a stronger and stronger defense over time.
- Cash is collected after each wave falls.
- Rolls are bought with that cash to bring in new units.
- Upgrades are purchased to raise your team's overall power.
Unlockables to work toward
TipsAs you survive more waves and fill out your Index, new content unlocks. These additions expand your strategy options.
- Check the Index regularly to see which units and elements you still need to unlock.
- New floors add new content as you advance.
- Traits are abilities tied to individual units.
- Mutations are special powers that can dramatically increase a unit's combat strength.
Glossary
Glossary- Plot
- The fixed area on your side of the map where you place and merge units.
- Roll
- Spending cash to randomly receive a new unit you can add to your plot.
- Merge
- Placing two units of the same type and level side by side to combine them into one stronger unit.
- Crate
- A reward box earned through progress that contains units, mutations, or upgrades when opened.
- Cash
- The in-game currency earned by defeating enemy waves, used for rolls and upgrades.
- Mutation
- A special ability attached to a unit that significantly boosts its combat power.
- Trait
- A unit's natural ability or characteristic that affects how it performs in battle.
- Floor
- A progression milestone that unlocks new content as you advance.
- Index
- An in-game record of every unit and element you have collected or unlocked.
Common questions
FAQDo the enemy waves ever stop?
The waves are endless, so the game never ends on its own. Your goal is to survive as long as possible and reach the highest wave number you can.
Can a merge ever fail?
No. As long as both units are the same type and the same level and placed next to each other, the merge always succeeds. There is no chance of losing units to a failed attempt.
How do I get rarer units from rolls?
Keep progressing through waves — the chance of rolling rare units increases the further you get.
Can I open more than one crate per game?
Yes. Multiple crates become available as you progress, and each one can be opened for its own set of rewards.
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