About:

Thousands of aliens, giant spiders, mutant lizards, and more are on the attack - can you survive the onslaught? In Crimsonland you will unlock new weapons and perks constantly improving your abilities and arsenal. Your screen will be filled with literally hundreds of monsters and thousands of giblets. Grab your gun and prepare for endless hours of intense top-down shooter fun!

Perks

What are perks? Perks are like talents in an RPG game. You earn XP by killing monsters and with XP you earn levels. After leveling up you get to choose a perk. For example, a perk called Fastloader enables you to reload extremely fast. During a session perks will stack up a and every game will be a bit different. You'll unlock perks during the quest mode after which they become available in the survival game modes.

Weapons & Carnage

We've created a huge arsenal of 30 unique weapons ranging from the humble pistol to the mysterious Shrinkifier 5k. The weapons are unlocked by playing the quest mode and they become available in survival game modes as well. The better your arsenal - the better chances you have at scoring higher outside the quest mode.

Co-op Mayhem

All Crimsonland game modes feature local co-op for up to four players. Gather your friends and show everyone who wields the gauss shotgun like a pro!

    Gratifying top-down shooter carnage!

    Hundreds of monsters on screen at a time.

    Dozens of awesome weapons, power-ups, and perks.

    Intense 2-4 player local co-op!


More info: 
https://www.gog.com/game/crimsonland 
https://www.crimsonland.com/