Games like Nightmare Puppeteer

Games like Nightmare Puppeteer include Garry's Mod, People Playground, Totally Accurate Battle Simulator, POSTAL 2, and Besiege. We matched them by the tags players give Nightmare Puppeteer on Steam (Moddable, 3D, Cinematic, Sandbox, and Dark Humor): closest matches first, and among equally close ones the better-known games.