This is a demonstration video of some custom Mutation game modes I cobbled together. I’m no coder, however, so they’re mainly based on Valve’s existing (and as of yet, mostly unreleased) Mutations. I credit those who were responsible for the Mutations mod release, particularly whoever provided the uncompiled nuc files. Custom Mutations displayed here: The Floor is Lava - You are being harangued by an endless horde of Spitters with instantly recharging spit. Your only weapon is the magnum and your health is in a state of constant decay, the only available health item to restore it being pills. Karate Hunters - You are being harangued by an endless horde of Hunters who can only scratch you. However, you can only fight back with knives and there are no health items at all. When you become incapacitated, you die. Rambo Charge! - You have an M60 with infinite ammo and you must traverse the level filled with dozens of simultaneous Chargers simultaneously charging you. If you do get charged, you are given one extra chance to survive. However, you’ll be on your last strike and the only health items available in the level are adrenaline shots.