GRUMPY GRAN! (SCARY OBBY)

GRUMPY GRAN! (SCARY OBBY) is a comedic obstacle course game on Roblox created by PlatinumFalls (formerly FatPapsGamesLtd). Released April 2022 and updated February 2026, it reached 717 million visits and 3.65 million favorites - one of the most-played obby experiences on the platform, distinguished by its memorable antagonist and cookie-theft premise.

The premise is light-hearted chaos: Grandma has baked famous cookies and players must steal them and escape to the Tree House before she catches them. Nineteen obstacle course stages stand between the player and the final showdown:

• 🗺️ Navigate 19 challenge stages across Grandma's house and grounds
• ⚔️ Survive the final boss showdown with Grandma at the end of the obby
• 🏆 Unlock Hard Mode after completing Easy Mode for a more demanding run
• 🚗 Use gamepass items like the Jetpack, Mini Helicopter, and Mech Suit to traverse stages with flair
• 🏆 Earn tiered completion badges from Bronze through Platinum and the ultimate Cookie King badge

Easy Mode is accessible to all players. Hard Mode unlocks after clearing Easy Mode, extending replay value for returning players. A Scooter Race mode offers a secondary competitive minigame alongside the main obby. Gamepass traversal tools - Jetpack, Mini Helicopter, Mech Suit, Player Vacuum - add a comedic layer to runs without creating a pay-to-win dynamic, since the game is purely completion-based rather than competitive.

PlatinumFalls noted in the game description that updates have been delayed due to work on new projects. The game is well-established but in a sporadic update cadence, which partially explains the mixed approval rate (63.4%) despite its massive player count.