It came from space and ate our brains is an isometric top-down shooter game in which You have to kill all the aliens. Classic version has only survival mode while normal version has a new brand story mode. In survival mode You have to survive 6 waves of aliens while in story mode You have to get through the map and reach an alien egg which You have to destroy. Survival mode has 12 levels and story mode has 6 levels.

There are 6 weapons in the game and each of the weapon can be upgraded 3 times. I'll List all the weapons with some of their basic stats and cost below. Be sure to test each weapon by Yourself and have fun.

Pistol is the first weapon You'll get in each level. Recoil doesn't change the character movement that much.
TOTAL UPGRADE COST : 75000$

Shotgun deals damage to group of mobs on short distance. The damage is divided by the amount of mobs. Recoil doesn't change the character movement that much.
TOTAL UPGRADE COST : 150000$

Machine gun deals damage to one mob at a time and has higher fire rate than all of the other weapons. After each upgrade the recoil gets bigger and it changes character movement speed. You can use it for Your advantage when running backwards as it'll push You back and You'll move faster.
TOTAL UPGRADE COST : 85000$

Plasma gun deals damage to one enemy at a time. Upgrading the plasma gun allows You to shoot more than one bullet at the same time. When fully upgraded You can shoot 3 bullets at the same time and every few seconds You'll shoot bigger bulets that will deal more damage.
TOTAL UPGRADE COST : 130000$

Laser gun deals damage to one enemy at a time. Upgrading the laser gun allows You to pierce through multiple enemies. When fully upgraded You shoot a stable laser beam that deals damage constantly to multiple enemies. The damage is divided by amount of enemies.
TOTAL UPGRADE COST : 112500$

Rocket launcher deals area damage to multiple enemies in an area that rocket exploded at. The damage is divided by amount of mobs in the area.
TOTAL UPGRADE COST : 185000$

There are 6 monster types which are different in some aspects such as health amount, movement speed etc. Health of the monsters also depends on difficulty level.

Pink Chewer
one of the basic monsters, has the lowest amount of health. Its movement is slightly faster than the other mobs.







Pink Eater
another basic monster with slightly more health points than the Pink Chewer. Its a little bigger compared to Pink Chewer.












Pink Snacker
this one teleports sideways and dodges the bullets, Its health points are around these of Pink Eater though I couldn't specify it because at 1st level it had around 6hp dying from one bullet at easy and at the 2nd level it had around 24 so I gave up.






Pink Slurper
You can call this one a tank as it is slow and has a bigger amount of health compared to the other monsters. It can be harder to see behind Your character as it doesn't illuminate with the pink light.







Pink Biter
its health is similiar to other basic monsters but it has a unique attack move. It charges for some time and then jumps straight at Your character so be careful and try to dodge it by running sideways when it's about to jump.




Pink Cruncher
its the last and the biggest of all of the monsters. It has a biggest hp amount (on easy it was around 200) compared to all of the other monsters but its movement speed makes it easy to run from.

There are 4 bonuses types that will spawn randomly in a level that You can pick and a total of 5 items.

BLUE CUBE
When You pick up a blue cube You randomly get a shield or medkit. If You already have other item in Your inventory You can't pick up blue cubes.




YELLOW CUBE
When You pick up yellow cube it gives You 2500$. You can always pick yellow cubes.




PURPLE CUBE
When You pick up purple cube it gives You a random weapon upgrade for some time. If Your weapon is already fully upgraded it will give You another random weapon that is also fully upgraded. You can pick up purple cubes if previous purple cube upgrade has ended. If You don't like the weapon You got You can change it by clicking TAB in classic version and selecting Your main weapon then clicking equip or in normal version by holding CTRL and selecting Your main weapon. Note that after changing back to Your weapon the upgrade ends and You can't have it back but You can pick another purple cube if You want.
GREEN CUBE
When You pick up green cube You randomly get a turret, beams or mines. If You already have other item in Your inventory You can't pick up green cubes.



SHIELD
Shield covers You from any damage dealt to You for some time. You'll never get damaged untill the shield effect wears off. Shield also deals a small amount of damage while enemies touch Your character. You can pick it up from blue cubes or buy it in shop for 5000$ in survival mode.

MEDKIT
Medkit heals You and Your allies for 1 heart. Maximum hearts amount is 4 and at the start of each level You have 3 hearts. You can pick it up from blue cubes or buy it in shop for 15000$ in survival mode.


TURRET
Turret can be placed on the ground and it deals the same damage as the fully upgraded machine gun. The number of damage is specified when the turret deals specified amount of damage/shoots specified number of bullets it explodes. If the turret won't encounter any enemies it won't explode until it deals specified amount of damage to enemies that are close to it. You can pick it up from green cubes or buy it from shop in survival mode for 25000$.

MINES
You get 3 mines that You can set on the ground. The mines explode when enemies walk close to them and deal some area damage. They don't dissapear until an enemy walks into them. You can pick it up from green cubes or buy it in shop for 10000$ in survival mode.

BEAMS
Beams rotate around Your character and deal damage to enemies around You. You can pick it up from green cubes or buy it for 7500$ in survival mode.

Brainless
Die for the first time


Lost My Mind
Die 123 times


Medic!
Complete Hospital on any difficulty


Ignored The Signals
Complete City on any difficulty


My Way Or The Highway
Complete Highway on any difficulty


Smelled The Fresh Air
Complete Countryside on any difficulty


Taken
Complete Crash Site on any difficulty


It Came From Earth...
Complete Planet on any difficulty


They Walked Into My Gun
Complete all Survival levels on Easy


Jerrycan
Complete all Survival levels on Medium


Hardened
Complete all Survival levels on Hard


Insane In The Membrain
Complete all Survival levels on Insane


Pistolero
Buy all Pistol upgrades in one game


Hunting Season
Buy all Shotgun upgrades in one game


Rain Of Bullets
Buy all Machine Gun upgrades in one game


Facemelter
Buy all Plasma Gun upgrades in one game


Science!
Buy all Laser Gun upgrades in one game


Had A Blast
Buy all Rocket Launcher upgrades in one game


No-Brainer
Reach 50x multiplier


All Together Now
Reach 100x multiplier


C-c-c-combo!
Reach 150x multiplier


Wipeout
Kill 1,000 aliens


Space Janitor
Kill 10,000 aliens


Total Annihilation
Kill 100,000 aliens


Splat!
Kill seven aliens at once


Got Your Back
Kill an enemy close to a player with one health


Last Man Standing
Stay alive while other players are waiting to respawn


Because 1337 Is Too Mainstream
Kill 1338 Pink Crawlers


Randomized
Shoot 95471 times


Scrooge
Collect 25,000,000 coins in total (accumulative)


Not Giving In
Complete a co-op multiplayer game on Insane without dying


Semi-Pro Alienator
Complete three co-op multiplayer games on Insane without dying


Brainfest Has Been Cancelled
Complete six co-op multiplayer games on Insane without dying


Most Valuable Player
Get the highest score in a co-op multiplayer game


Unmissable
Get the highest score in a co-op multiplayer game ten times


Hoarder
Collect 250 pick-ups


In The Navy
Complete Navy on any difficulty


Heavy Metal
Complete Industrial on any difficulty


Home Sweet Home
Complete Suburbs on any difficulty


Scrapyard Challenged
Complete Scrapyard on any difficulty


Houston...
Complete Launch Pad on any difficulty


Unsinkable
Complete Ship on any difficulty


Saving The Day
Revive 50 people using Medkits


Wave Your Hands In The Air
Complete all Campaign levels on Easy


Why Would I Ever Stop Doing This?
Complete all Campaign levels on Medium


Stop... Hammer Time!
Complete all Campaign levels on Hard


Can't Touch This
Complete all Campaign levels on Insane


On Top Of The World
Complete Rooftops (Campaign) on any difficulty


Perioperative Mortality
Complete Clinic (Campaign) on any difficulty


Not Hogan's
Complete Alleys (Campaign) on any difficulty


Tunnel Vision
Complete Sewers (Campaign) on any difficulty


Winter Is Coming
Complete Riverside (Campaign) on any difficulty


Caved In
Complete Cave (Campaign) on any difficulty

Hold The Line
Place 50 Turrets


Tread Carefully
Place 150 Mines


Loving My Bubble
Use the Shield 50 times


In The Spotlights
Use Beams 50 times

The guide will be updated with maps.
Russian guide made by SleeP: https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=700310973
Japanese guide by NEXT: https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=444696666
[WIP detailed EN achievements guide here]
[WIP detailed PL achievements guide here]
[WIP basic PL guide here]
Thanks for NEXT and SleeP for making their guides as they were my starting point on how would I want my guide to look like. Feel free to correct me if there're any mistakes as I'm not a native English speaker. Rate my guide or add it to favourites if it helped You.