HAFFNERVISION HC-01

TINY CASTLES EDITION

A pocket-sized pixel game system with one very special game built inside.

The HC-01 is a fictional retro-inspired handheld created by Haffnervision for Tiny Castles.

It combines the tactile simplicity of an early portable game system with a handcrafted pixel-art interface, dedicated controls, tiny sound system, save memory, and a custom operating interface.

The entire device is designed around one idea:

Small machine. Small game. Big world

A cozy pixel art game about gathering stones, building tiny castles, and slowly bringing life back to a quiet town. Finish the castle your grandfather left behind.

Build tiny castles. Heal a forgotten town. Finish what JoJo started.  

Your grandfather JoJo had a dream. In the back field behind the old farmhouse, he began building something special — tiny castles made of stone. Now the town of Stonebridge feels faded and tired… but the stones still remember. Carry them. Place them with care. Maybe, just maybe, small acts can heal big emptiness.

HARDWARE SPEC

Feature	HC-01
System	Haffnervision HC-01
Edition	Tiny Castles Edition
Display	2.8" Pixel LCD
Resolution	320 × 180
Aspect Ratio	16:9
Graphics	Haffnervision Pixel Engine
Color	64-color display palette
Audio	Dual-channel chiptune audio
Speaker	Front-facing mono speaker
Controls	D-Pad + A/B + Start/Select
Shoulder Buttons	L / R
Menu Button	HOME
Power	Physical power switch
Storage	Internal game memory
Save System	Persistent save data
Game	Tiny Castles
Interface	Haffnervision System Menu
Battery	Rechargeable
Charging	USB-C
System Style	8-bit / 16-bit inspired
Orientation	Landscape
Players	1
Game Format	Built-in cartridge-style system