Stone Ball Simulator!

Stone Ball Simulator is an incremental rolling simulator on Roblox by 7Days - Inc. where players collect stones to strengthen a ball, smash castles for coins, and hatch pets to chase down long-term collection goals. Launched in November 2023, the game has accumulated 3.9 million visits and an unusually high 245K favorites - a 6% favorites rate that signals strong player affinity for a simulator of its size.

The core loop revolves around growing your ball's power and rolling it into castles. Collecting stones strengthens the ball, and destroying castles converts that strength into coins. Coins fund skins that boost stone collection further, creating a compounding cycle that accelerates over time:

• 💰 Coins - earned from castle destruction and used to buy skins and upgrades
• 💎 Skins - cosmetic ball variants that also provide stone-collection multipliers
• 🏆 Rebirths - prestige resets that lock in permanent coin and stone bonuses for all future runs
• ⏳ Daily Login Rewards - consistent return incentives that reward logging in every session
• 💎 Pet Index - a completionist tracker; filling every slot unlocks major endgame rewards

Pets are a separate progression track worth serious investment. Each pet can be hatched, crafted into upgraded versions, and tracked in the Index. Completing the entire Index unlocks rewards described as "insane" by the developer, making it the defining long-term goal for dedicated players. The game also features a UGC quest system where simple in-game objectives reward free Roblox avatar items.

Stone Ball Simulator sits in the densely populated incremental simulator genre alongside dozens of similar collect-and-rebirth games on Roblox. Its pet crafting depth and the free UGC quest hook give it more staying power than most single-mechanic simulators.