STACK OR SINKPlay on Roblox Stack & climb
Grab a prop, place a solid foundation, and build something you can climb. Height only helps if you can reach it.
A SURVIVAL GAME ON ROBLOX
BUILD YOUR
WAY OUT.
The disaster is rising. Your next step is a crate, a chair, or the prop your rival just threw at you.
Mobile-first · Solo or rivals · Cosmetic-only purchases
STACK ↗ CLIMB ↗ THROW ↗ COUNTER ↗ SURVIVE ↗
THE PLAN IS SIMPLE
Everything is a step.
Until it’s a weapon.
Four lanes. Rising danger. One very useful pile of everyday objects.
Throw & counter
Keep that prop for your escape—or aim it at a rival. Time an eligible weak catch and turn their attack into your next step.
Outlast the rise
Stay above the hazard, recover from mistakes, and survive the showdown. When you’re out, the Drop Deck keeps you involved.
YOUR NEXT MOVE
Build higher.
Throw smarter.
Don’t sink.
Practice the basics in Training Grounds. Take on Solo Survival. Or face rivals in a four-player battle, with clearly marked bots filling empty seats.
The real challenge is knowing when to save a prop—and when to let it fly.
Make your first stackBEFORE YOU JUMP IN
A few good
questions.
What is Stack or Sink?
A Roblox survival game where you stack everyday objects into a climbable tower while a hazard rises below. Build your escape, throw props at rivals, and try to be the last survivor.
Can I play alone?
Yes. Try Solo Survival or practice in Training Grounds. Public matches fill empty seats with clearly labeled bots so you can start without a full group.
Can I play on my phone?
Stack or Sink is built around touch controls, with keyboard and controller support too. Open the game in the Roblox app on a supported device.
Does the tallest tower win?
Survival decides the winner. Height rankings can tell a different story: climbing high helps, but you still need to stay alive.
Can I catch every attack?
No. Eligible weak throws can be caught or countered. A dangerous incoming prop is something to avoid, not a guaranteed building supply.
What happens when I lose?
Eliminated players move to the Drop Deck, where controlled spectator actions keep them involved. When the round ends, jump into another match.
Can I buy an advantage?
Purchases are cosmetic only. Paid items do not make attacks stronger or buy a competitive advantage.
Is the game still being tested?
Yes. Stack or Sink is actively being improved. Share feedback through an official social account: your device, what happened, and what you were trying to do. Never include passwords or private account details.
THE NEXT ROUND STARTS HERE
Catch the close calls.
Follow the official accounts for gameplay, building tips, and updates. Found a bug? Tell us what happened.