Yes, an idle game. You run a fast-food empire, but the twist is that you are the taste tester. Each burger you approve adds to your personal weight. The game runs in the background; you check in every 10 minutes to click "Eat Again."
Uses Ren’Py’s Web Assembly port. It loads like a YouTube video—click, wait 5 seconds, play.
Available on Itch.io as a browser-playable HTML build. No login required. Click "Run in Browser" on the game page. weight gain games browser work
The good news? The post-Flash era has ushered in a renaissance of browser-based gaming. Today, dozens of high-quality weight gain games run directly in Chrome, Firefox, or Edge—no installation, no viruses, just pure, guilt-free expansion.
Built on pure HTML5 and WebSocket. No plugins. The game saves your data via account login, so you can switch from a work PC to a home laptop seamlessly. Yes, an idle game
This is a spiritual successor to the old Flash classic "Weight Gain Game." You manage a character’s daily routine: set meals, exercise avoidance, and snack intervals. The game runs on a timer system, simulating weeks of indulgent living.
Have a favorite browser-based weight gain game that we missed? Check the comments below—the community is always sharing new links. And remember: always verify the file before you click. The game runs in the background; you check
Unlike single-player experiences, Feeder Online is a persistent browser MMO dedicated entirely to weight gain. You create a character (feeder or feedee), and your goal is to eat food items to increase your size class (from Slim to Obese to Immobile).