Cut a Rock - Roblox Mining Sim Guide
Cut a Rock is an incremental simulator on Roblox by Duality Works, released September 14, 2026. You mine deep, cut rocks open for rare materials, and keep upgrading to reach lower floors.
The core loop
- 1Mine and break floors
Dig down through floor after floor. Deeper floors hide rarer rocks with better materials inside.
- 2Train on anvils
Working an anvil builds Power, which is what lets you crack tougher rocks and push deeper.
- 3Cut rocks open
Every rock you haul up gets cut open to reveal the hidden material inside - that is where the rare finds come from.
- 4Sell and upgrade
Sell your finds, buy stronger pickaxes and better machines, and complete your Index to unlock powerful auras.
What to know
Offline progress
Your machines keep cutting while you are away - log back in to collect the Power they banked.
Index & auras
Completing Index entries unlocks auras that boost your whole setup.
Pets update
The developer has been teasing a pets update - frequent patches land every couple of days.
Frequently asked questions
Is Cut a Rock free?
Yes, it is free on Roblox. Optional game passes speed up anvil training.
How many players per server?
Servers are small - up to 6 players - so it plays more like a focused sim than a social hub.
What is the fastest way to progress?
Keep anvil training running whenever you are active, upgrade pickaxes before pushing new floors, and never skip Index rewards.