Weight gain simulator: the idle game

What a weight gain simulator is

People who search for a weight gain simulator or a weight gain sim want one of two things. Some want realism, a tool that models a body; this is not that, and a fantasy game has no business giving advice about food, weight or health. Most want the other thing: a simulator in the way idle games are simulators, a loop where a number goes up and everything on screen follows it.

Keep Her Fed is that. The “simulation” is an economy: bites turn into tips, tips buy bigger plates and helpers, and food eaten sets her size on a ladder of stages.

How the numbers work

There are six plates. A bite from the first plate is worth 2 food; the sixth is worth 240. Each plate costs more tips than the last, from 50 for the second to 70,000 for the sixth, and you buy them in order. Alongside the plates, three helpers feed her on their own at 3, 15 and 80 food a second. Each extra copy of a helper costs 15 % more than the one before.

Her size is drawn from the food total. The thresholds for each stage grow by a factor of three, so each size takes a similar slice of your time rather than the last one dragging on. A full run to her biggest size takes roughly four to six minutes of steady play.

Idle progress while you are away

Close the tab and the helpers keep working at half speed for up to two hours. When you come back you can gain at most one stage from being away, and never the last one: the final size is always yours to reach live. The point is a small reward for returning, not a game that plays itself.

Every stage is a real moment

The weight on the scale is not a number on a bar. Each stage is a short loop of her at that size, from 150 lb up to 1,000 or more, and the same stages are described one by one in our Amanda timeline, the Mara timeline and the Roxxana timeline. Reaching a stage also unlocks it in an album, so a second run with another girl has a goal.

Simulator or story?

An idle simulator is the calm end of the genre. If you want reflexes, try the 75-second stream game. If you want a rival and an ending, try Seven Banquets. The comparison of game types shows where each one fits.