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Rule Hollow
Change the room's rules and push every block home
Each room holds amber and teal blocks. Step onto the purple diamond rule station to switch the rules for the whole room: a colour might become pushable, immovable, or something you can walk through. Use each switch well, put every block on an anchor of its colour, then reach the exit.
The game screens are in Chinese for now. The puzzles themselves are visual, and this page explains the rules in English.
- Original
- No sign-up
- Saved locally
- Free
How to play
- Move with the arrow keys or the on-screen direction buttons.
- On the purple diamond rule station, press "switch" to cycle the rules: amber push / teal stop → amber stop / teal pass → amber pass / teal push.
- A "push" block moves one square at a time and needs empty space in front of it. You can walk through a "pass" block, but other blocks can't overlap it.
- Fill every anchor with a block of the same colour, then walk to the exit.
- Each real move or switch is one step, up to 300; undo and restart are always available.
Controls
Arrow keys or direction buttons to move. On a rule station, press the switch button, or Space on an empty part of the page.
Progress and saves
- Progress is saved automatically in this browser, so you can close the page and pick up where you left off.
- The game's own save panel can download a JSON backup. Make one before switching browsers or clearing data.
- Signed in to lyrasama.com, you can use "Account save" at the top of the game page to keep your progress in your account and load it on another device.
FAQ
What if I make a wrong move?
Undo step by step, or restart the room. Your best (fewest-step) record for each room is kept.
Can I skip ahead to later rooms?
Yes, you can switch rooms at any time. You'll be asked first, because the current room's draft is replaced.
Do I need an account or to pay?
No. The games are free, with no ads or in-app purchases. A lyrasama.com account is only for keeping your progress in your account; you can play everything without one.
Where is my progress stored?
In this browser on this device; nothing is uploaded. Clearing browser data or private browsing loses it, so download a backup from the game's save panel first.
Do you collect data about me?
Only daily counts per game: opened, level cleared, came back on a later day, and played for 5 minutes. No identity, IP address or game content. Nothing is counted when your browser sends Do Not Track or Global Privacy Control.
Another question, or found a bug? Let us know.