So Tripwire Interactive came up with the second installment of Killing Floor 2. I seem to like both games equally due to their content and great gameplay experience.

The game is based on events from Killing Floor, in which bio-tech firm Horzine attempted to create military clones and was hijacked by an insane researcher who unleashed the clones across the UK. The clones have now rapidly spread across Europe, paralyzing the response from the European Union. In Killing Floor 2, taking place a month after the first game, the outbreak has spread beyond Europe, causing governments to collapse and communication systems to fail.

Gameplay consists of players fighting through waves against Zeds. As waves pass, the enemy count will increase; different enemy types are introduced as players complete each wave, culminating to a boss fight as the final wave. Enemy count is determined by the number of players in the game. The boss character is determined randomly upon the start of the last wave, and each boss is defeated differently. Players equip themselves with melee weapons and firearms, a healing syringe, and a welder used to block passages. Random weapons, ammo, and armor can be found by exploring the level, though players have a limited amount of weight they can carry.

When players kill a Zed, they earn in-game money and experience points. Achieving certain types of kills, such as a head shot, may cause the game to enter "zed time," when all game actions for all players are slowed down for a few seconds, providing more time for players to adjust their decisions amid battle. Once they spawn, Zeds chase and attack players automatically. When damaged, players can restore their health using a medical syringe on themselves or having a teammate use theirs, among other regenerative items. Once a player's health reaches zero, they will die and will not respawn until the end of the wave. The mission will fail if all players die before completing a wave. Players gain monetary bonus for surviving a round, which they can use to buy and/or sell body armor, ammo, and weapons at a store, also known as the Trader. The Trader is only open for a limited time between waves and in certain locations around the map. The number of waves in a match can be configured, and four difficulty levels are available: Normal, Hard, Suicidal, and Hell on Earth (ordered in increasing difficulty).

Prior to starting a match, the player selects one of several perks (or classes) that represent basic combat classes (e.g. Field Medic, Commando, Support). Each perk has various skill boosts (e.g. better damage with specific weapons, healing other characters, welding doors more effectively) that are unavailable to other perks. In the meta-game, players earn experience points for each of their perks by doing actions related to those perks, for example, healing other players will gain Field Medic experience points. The player can also acquire those same experience points when they are not using the appropriate perk. Experience points are most easily earned by using weapons specific to the class, such as explosive weapons for the Demolitions class. Each level gained boosts the perk's base skill numbers. For every five levels gained, the player is able to select one of two specific skills unlocked for the respective perk. These skills include a mix of passive and active abilities, including some that can benefit other team members. Players can also configure their playable character through a number of pre-made personas and options for various clothing and accessories, but these customizations are purely cosmetic with no impact on gameplay mechanics.

I LOVE BRUTAL GAMES :)
IN THIS GAME I CAN KILL TOO MANY ZOMBIES :)

march 2020, they still haven't fixed invisible inventory bug that plagued the game since day 1. best dev