Black Castle – Retro Action Platformer Chrome Extension
Install, pin and open it — 3 steps, about a minute.
PastPlay offline game
Black Castle – Retro Action Platformer is ready to play
Installation is complete. The original Black Castle Game Boy adventure and its local runtime are packaged inside the extension for focused offline play.
Offline-ready · No account · Focused popup play
Quick start
Start playing in three steps
Pin the extension
Open Chrome’s Extensions menu and pin Black Castle – Retro Action Platformer so it stays easy to reach.
Open the game
Select the toolbar icon. Play User0x7f’s complete four-level Game Boy adventure as the main experience.
Check the controls
Open Guide for the verified movement, jump, attack, Start, and Select mapping. Restart reloads the current session.
Two ways to play
Original first, quick mode second
Play User0x7f’s complete four-level Game Boy adventure as the main experience.
Switch to Castle Run for a shorter local HTML5 platforming challenge.
Want more retro games?
Prefer playing in a browser tab? Open the official PastPlay game page.
Inside the extension
Gameplay preview
If the game does not respond
- Click once inside the game area before using the keyboard.
- Open Guide and confirm the controls for this game.
- Select Restart to begin a fresh game session.
Privacy details are available in the PastPlay Offline Game Extensions Privacy Policy.
Extension removed
Thanks for playing Black Castle – Retro Action Platformer
The extension has been removed from Chrome. It requires no account and does not keep personal data after removal.