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Game guide
Cat Invasion Guide: First steps before your first wave
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About
OverviewCat Invasion is a tower defense game where you hold your base against waves of meme cats, growing stronger through weapon upgrades, class unlocks, and perks.
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Contents
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[🐱] Cat Invasion
01
First steps before your first wave
StepIn short
Redeem your free codes for gold before your first wave so you start with gold for upgrades.
Open the code entry screen from the settings or main menu. Two working codes are tracked on this site. Each code gives you 250 gold, and that currency is what buys new classes and weapon upgrades.
- Open the code screen find it in the settings or menu right after the game loads.
- Enter your codes two working codes are listed on this page; redeem both before playing.
- Check your gold total you should have 250 gold per code added to your balance.
- Browse available classes look at what each starting class offers before you pick one.
02 Working codes
Codes
1MMEMBERS
250 FREE GOLD
250 FREE GOLD
25MVISITS
250 FREE GOLD
250 FREE GOLD
FREE GOLD
300KVisits
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03
How waves work
SummaryIn short
Each wave is harder than the last, and the gaps between waves are when you upgrade and activate perks.
Meme cats charge your base in waves, with difficulty climbing as you progress. Between waves you get a window to upgrade your weapon or activate perks.
- Waves successive cat attacks that grow harder each round
- Between-wave window the prep phase where upgrades and perk activation happen
- Positioning where you stand relative to the cat route affects how many you can hit at once
04 Live and upcoming events
Events
Events running now or coming soon. They have fixed dates, so check them first.
Upcoming
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05
Classes and how to choose one
Table
In short
Every class handles enemies differently, and unlocking more classes costs gold.
You pick a class at the start, and each one comes with its own set of abilities. Unlocking more classes costs gold, and different classes perform better against certain cat types.
| Starting class | available immediately |
| Unlocked class | bought with gold, adds abilities suited to specific enemy types |
| Class ability | the special skill that separates each class from the others |
| Enemy matchup | some classes perform better against certain cat types than others |
06
What to do when you keep losing the same wave
Check
In short
Repeated failure on one wave almost always points to under-upgraded weapons or a class that is a poor fit for that wave's cat type.
If the same wave is beating you over and over, run through this checklist to find the weak point before your next attempt.
- Weapon upgrade level is as high as your gold allows going into that wave.
- Your active class ability is a good match for the type of cats in that wave.
- Your perks are activated before the wave starts, not sitting idle.
- You used the between-wave window fully rather than jumping in unprepared.
07
Free-to-play progress
Warn
In short
Free codes and in-game gold get you through the core content, but reaching every class and top-level upgrade takes real time.
The two codes this site tracks give you a solid gold foundation at the start. Multiple classes can be unlocked without spending anything extra. Paid options speed up progress, but free players can clear all the waves.
Worth watching out for
Redeem both codes immediately
that free gold is the biggest single boost a new player can get.
Expect slower progress toward late classes if you are not spending
it is possible, just not instant.
Glossary
Glossary- Wave
- A timed attack by a group of meme cats; clearing it advances you to the next, harder wave.
- Gold
- The in-game currency earned by defeating cats and from redeem codes, used for weapon upgrades and class unlocks.
- Class
- A character type you select before playing, each with its own ability that affects how you handle enemy cats.
- Upgrade
- Spending gold between waves to increase your weapon's damage or effectiveness.
- Perk
- A power-up effect you can activate to strengthen your performance during a wave.
Common questions
FAQWhere do I find the redeem codes?
This page lists the currently working codes. Each code can only be used once per account.
Can I finish the game without spending Robux?
Yes, free players can clear all the waves. Progress is slower without paid options, but the game's balance allows it with good weapon upgrades and smart class choices.
Which class should I pick first?
Any of the starting classes works for the early waves. Once you have earned more gold, you can unlock additional classes.
Updated Sep 10, 2026
Game updates can change what is on this page. If you spot something, get in touch and let us know.
Game updates can change what is on this page. If you spot something, get in touch and let us know.
