War Ender is an action-platfomer game made and published by Infinite Level. You play as Red, part of an organization created to eliminate the group of villains who took peace away from the city. Your motivation to go out and fight is found when you happen upon your friends lying dead at the side of the road. You figure out that these villains who removed the city from its peaceful state were the ones who killed your friends, so you end up tracking them down. Every time you launch the game, it shows you the story, but you have the option to skip it.
Source: N4G PC War Ender review – ChristCenteredGamer