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Obby: Pump Up Your Muscles! 1 per second

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Obby: Pump Up Your Muscles! 1 per second

About Obby: Pump Up Your Muscles! 1 per second

Casual Simulation

Rating:	9.6 (609 votes)
Released:	June 27, 2026
Last Updated:	June 27, 2026
Technology:	HTML5 (WebGL)

Welcome to the prison gym, where only strength earns respect! You start as a skinny rookie, but every rep makes you stronger. Push-ups, sit-ups, pull-ups — build your body and rise through the ranks.

How to Play Obby: Pump Up Your Muscles! 1 per second?

PC Controls: — WASD — move your character — Space — jump — E — interact (train, eat, grab food) — Left Mouse Button — train — Move mouse — look around — Mouse Wheel — zoom in/out Mobile Controls: — On-screen joystick — move — “Jump” button — jump — Tap on screen — train