Know your target
Check the target time and the allowed tolerance. The countdown gets you ready.
BLACKJOKER
BETA 1 PRECISION MEETS CHAOS
One red button. One target time.
And one moment that makes the difference.
STOP! is a precision timing game by BlackJoker Studio. Stop the clock as close to the target as you can. Your timing decides whether the next door opens.
At first, there’s room for error. Then the windows get tighter, the rooms change, and the display doesn’t always play by your rules.
Check the target time and the allowed tolerance. The countdown gets you ready.
Space or left mouse. One press makes the difference between almost and perfect.
Pass the task, unlock the next room and take on a new challenge.
02 / THE CAMPAIGN
Workshop, storage, darkroom and more.
Every room has its own character.

TRAINING ROOM
Your first STOP. The clock stays visible and a generous tolerance gives you time to find your rhythm.
Actual beta screenshots. Rooms unlock one by one as you play.
03 / YOUR WAY TO PLAY
PLAY
Ten increasingly difficult tasks. Unlocked rooms stay available to replay. Your next goal is always the next door.
PROGRESS & UNLOCKSFREE PLAY
Train your timing, collect coins and discover unlockable variations. Track your personal stats and pick up upgrades.
COINS & UPGRADESCHALLENGE RUN
Five tasks, changing rules and up to 5,000 points. Can you stay precise through an entire run?
POINTS & MEDALSSTOP! / WINDOWS BETA
Play the first beta and help us make STOP! better. Tell us on Discord what works — and what still needs a STOP.
BETA 1Download. Run the EXE. Play.
No installation or game account required.
04 / GOOD TO KNOW
WASD to move, mouse to look around. Space or left mouse stops the clock. E collects nearby bonus coins. Escape pauses the game or goes back.
Yes. Coins, unlocked rooms and stats are saved locally. Different PCs or Windows users have separate saves. People sharing the same Windows user also share the save.
This is Beta 1. All ten rooms and three game modes are playable. We’re still working on polish and new ideas. A planned progression tree is not included yet.
The update system is prepared. Until the online source is configured, replace the EXE manually with the new version. Your saved progress is kept.
Tell us on Discord: your version, game mode, room number and the steps that caused the issue. A screenshot and your FPS help. Please don’t post personal save or log files publicly.