fitness, weight loss, character, Project Zomboid, jogging, running, in-game exercise, push-ups, sit-ups, diet, healthy eating, foraging for food, avoiding junk food, calorie management, water drinking, in-game character sweating, endurance training, strength training, high-intensity interval training, safe zone exercising, avoiding zombies while exercising, forest, urban environment, day cycle, realistic metabolism, inventory management to reduce weight, solo, survival strategy, health-conscious gameplay, dynamic weather, soft lighting, immersive gameplay experience.