Games Like Without Pain

Without Pain - is a dynamic 2D shooter with surviving elements where you will have to fight against various types of monsters.
You are Roy, the main character, who has to struggle with zombie apocalypse alone. The main point is to reach a camp with survived ones and stay alive. But make sure that the way to this place is really hard. Seek guns, secret places, kill monsters, buy ammo and do different locations. In this case the game will be fun for you. Will you be able to survive in such a hell and not to give up? It's up to you!