A cozy browser feeding game with nothing to download. Drop burgers, donuts and shakes onto Mochi and watch the 3D character round out — works on phone or desktop.
▶ Play Feast Feeder 3D — FreeFree Browser Weight Gain Games — No Download, Any Device
Want weight gain games you can play right now with no download? Ours run entirely in your browser. Open the page on your phone, tablet, or computer and start feeding a cute character within seconds — no app store, no installer, nothing to update. Both games are free, mobile-friendly, and 100% SFW.
Two browser weight gain games
Instant play on any device — click a card and start feeding, no install.
An arcade eating-contest game in your browser — no install needed. Swipe or steer down the buffet, grab every dish, and bulk up before the timer ends.
▶ Play Buffet Rush 3D — FreeWhy browser weight gain games beat downloads
Browser weight gain games are the most convenient way to enjoy the genre. There's no download to wait for, no installer to run, and no storage space to give up. You open the page, the 3D scene loads, and you're feeding a cute character in seconds. When you're done, you just close the tab — nothing left behind on your device.
Both of our games are built as HTML5/3D titles, so they run on the same web technology as any website. That means they work across devices without a separate app: the exact same game plays on your laptop at home, your Chromebook at school, or your phone on the bus. No platform-specific builds, no app store approval, no waiting.
Made for mobile, too
A big reason to play in the browser is mobile. Many downloadable weight gain games are PC-only, but ours are designed for touch from the ground up. On a phone or tablet you tap to feed in Feast Feeder 3D and swipe to steer in Buffet Rush 3D — the controls adapt to your device automatically. So whether you've got a few minutes on a desktop or you're killing time on your phone, the games are ready.
- No download or install — the game runs on the page; nothing to grab or set up.
- Any device — desktop, laptop, Chromebook, tablet, or phone.
- Any modern browser — Chrome, Edge, Safari, or Firefox, all supported.
- Always current — you load the latest version every time, with nothing to patch.
Both browser weight gain games are free, mobile-friendly, and 100% SFW — no download, just instant play.
How to start
Choose a game above. Feast Feeder 3D is the relaxed option — tap or click food to feed Mochi at your own pace. Buffet Rush 3D is the fast one — race the buffet and chase a high score. Both load instantly with no account required.
Want to gain weight for real?
If the games got you thinking about real-life weight gain, our free tools are right here in your browser too. Use the Weight Gain Calorie Calculator to find your daily surplus and read how to gain weight fast the healthy way.
More weight gain games
Browser weight gain games — FAQ
Do these browser weight gain games need a download?
No. Both games are HTML5/3D browser games that load directly on the page. There is no download, no installer, and no app — you click and play instantly.
Can I play these weight gain games on mobile?
Yes. Both browser games are mobile-friendly with full touch controls, so they play smoothly on phones and tablets as well as on a desktop or laptop.
Which browsers do the games work in?
Any modern browser works — Chrome, Edge, Safari, and Firefox on desktop or mobile. As long as your browser is up to date, the 3D games will run.
Are the browser weight gain games free?
Yes. Both games are completely free, with no paywall, no trial, and no sign-up required.
Are they family-friendly?
Yes. Every game on weightgain.us is 100% SFW. A cute cartoon mascot simply gets pleasantly round from eating, with no nudity, fetish, or adult content.
Play in your browser now
Both weight gain games are free, mobile-friendly, and load instantly — no download. Pick one and start feeding.