Explore a giant city and transform into a huge twin boss! This mischievous character grows to enormous proportions, becoming a goliath in this yellow-jumper-clad game. Obliterate the earth and become the fattest being in the universe in this surprising rainbow friend game, using deception to control your surroundings. Amazingly cheap food like burgers, chicken bread, and sweets are everywhere in Ragdoll town, fueling the naughty rainbow friend's huge sibling. Mama cares for the infant in this care game, but the fat, hungry goliath is too clever for the legendary food game's challenges. Navigate a destructible environment while avoiding danger. Use your oil to buy upgrades and unleash destruction on everything in your path! The bigger you get, the better! Eat burgers, doughnuts, and even people! This is Fat Twin Sibling!

Fat siblings battle to become the fattest! Eat everything in sight and become the ultimate chubby sibling.

What's New in Version 1.4

Last updated September 1, 2024

Minor bug fixes and improvements. Install or update to the latest version to experience them!